Archive for the ‘Engine swaps--general’ Category

Power steering pump pulleys for your LS engine swap

Friday, October 17th, 2008

In the post below, you’ll find details about converting your attached power steering pump reservoir to a remote reservoir. Right now, let’s talk about one more part that may help solve clearance issues–the power steering pump pulley.

GM is almost as bad as Ford about making changes and having dozens of different part numbers for the same basic part. In the case of PS pump pulleys, having some variation is a good thing.

So far, we’ve found 6-groove serpentine pulley diameters from about 5.25″ to 6.625″. This difference will change the RPM of the pump relative to the engine RPM but for most street applications, you probably won’t register much difference in actual steering feel.

In the photo below, you’ll see one other important difference besides the diameter. Notice that the smaller pulley has access holes while the larger one does not. When selecting a pulley, we really recommend finding one with the holes. Otherwise, any time you want to install or remove the pump, you’ll have to pull the pulley to get to the bolts that mount the pump. That’s not a super big deal if you have the right puller and the right installer tool. But, with most engine swap projects, you’re likely to be installing and removing components several times during your build and then pulling and pressing on a pulley becomes a pain in the butt.

Saginaw Type II power steering pump pulley

And just one more point: As usual, Corvette parts have to be a little different. In this case, the shaft diameter of most Corvette pumps is .66″. All other Type II (or TC) pumps including Camaros, Firebirds, and most other GM passenger cars are .75″ diameter. So, choose your pump pulley accordingly.

Power steering pump modifications for your LS engine swap

Wednesday, October 15th, 2008

Here’s how to convert a Saginaw Type II (or TC) power steering pump from an attached reservoir to a remote reservoir.

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This conversion may be necessary if you’re using our Kwik Performance driver’s side bracket kit. Why do you need our bracket kit at all? Most likely for three reasons:

1. You have a Camaro, Firebird, or GTO engine with the alternator down low and the power steering pump up top. Your LS1 or LS6 engine swap project may have clearance issues with a steering box or you may not like the idea of power steering fluid leaking down and frying your alternator. The Kwik kit puts the alternator up top and the pump down low–like the Corvette position.

2. You have a truck/SUV engine and the alternator is too high, maybe causing hood clearance issues.

3. You have an LS1, LS2, LS6, LS7 or other crate engine or a swap meet engine with no brackets at all. You can run our driver’s side bracket by itself or you can team it up with our air conditioning compressor re-location bracket kit. Either one works alone or in tandem.

If you’re using a F-body engine and you have the original power steering pump, all you have to do is remove the plastic reservoir by driving off two spring clips and giving the reservoir a good tug. You’ll see a plastic sleeve that may come off with the reservoir or may stay in the pump. The sleeve may also have an o-ring. Pull out the sleeve and you’ll be ready for the instructions below.

If you’re using a truck or SUV engine, 4.8, 5.3 or 6.0, you’ll most likely have a Type I (or P) style pump. This is the older Saginaw pump design with an attached metal reservoir. In this case, you have to track down a Type II or TC pump. Almost any GM car from the late ’80s on will be a donor candidate.

Here’s one from a Pontiac Montana van for example:

Saginaw TC power steering pump

And here’s one that looks completely different because of the attached plastic reservoir but the pump body is identical. This one is from a 2005 GMC Envoy (same as Chevy Trailblazer).

Type II power steering pump

You can also find good deals on reman units at your local parts store. For example, if you ask for a pump for a 1990 Chevy Celebrity with a 2.5L engine, your local NAPA store will probably charge you around $65 plus a $5 core charge. If you ask for a 2000 Cavalier, you’ll get what appears to be the same pump but you’ll pay about $75 plus a $55 core charge. I’m sure there are minor pressure and output differences but not enough to matter in most street driven vehicles.

Oh, and there’s usually a supplier or two on eBay offering reman units for even less and with no core charge. (Usual disclaimer about checking feedback ratings, etc. before doing business with eBay members).

OK, here’s one way to set up a remote reservoir. We’re going to use factory GM parts from a late Corvette. If you want to buy them new, here are the GM part numbers:

Reservoir 26046502
Bracket 12555222
Return tube 26006074

The photos below show how to install the return tube. When you first look at the return opening on the pump, the place where the reservoir used to connect, you may think that the new return tube you just paid about $30 for, won’t fit. That’s because the hole in the pump has a step. The outer diameter is about .75′ and the inner, stepped diameter is the .625″ that matches the new return tube.

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The return tube will be a press fit. The simplest way I found to do the job is to lube up the end of the tube, hold it in place, slide a 5/8″ open end wrench over the tube just above one of the beads, and then tap gently on the wrench with a hammer. Keep moving the wrench around the tube as you hammer to keep the tube going in straight.

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Next, bolt on the GM bracket using the two upper/inner bolts than hold the Kwik bracket to the cylinder head. After that, just slide the reservoir down over the spring tabs on the bracket.

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Here’s what it looks like with the reservoir in place.

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Now, you’ll see two tubes sticking out the bottom of the reservoir. One is a small tube where the fluid returns to the reservoir from the steering box. The other is a larger, 5/8″ tube that points down and back. Here’s where you attach a feed hose from the reservoir down to the pump. This is a non-pressure hose but does need to be an oil-resistant type of hose (no heater hose here).

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OK, that one way to do it. A second way, slightly more complicated, we’ll cover in a later post. The second way involves tapping the power steering pump for a threaded fitting so you can run stainless braided hose or other hydraulic hose with threaded fittings.

And, if you’re working with a larger budget, a third way is to source an aftermarket pump that’s already equipped with a threaded fitting. These pumps are often used in racing or off-road applications. Check Summit Racing or Jeg’s for more info.

New brackets for LS Chevy engine swaps

Saturday, September 20th, 2008

Just in case you didn’t see our announcement over on our regular web page, we’ve just introduced a front accessory drive bracket for the driver’s side of LS1, LS2 and all the other Gen III and Gen IV Chevrolet engines.

It’s just one more way we’re trying to make your LS engine swap Kwik and easy.

This new bracket kit mounts the alternator and power steering pump in a position similar to the Corvette LS engine–alternator up top with the PS pump below.

We think this will be especially popular with anyone trying to use an F-body engine (Camaro, TransAm, plus GTO) in some early chassis.  Or anyone using a 5.3 or 6.0 truck/SUV engine and has a hood clearance issue with the high-mount alternator.

 It makes a perfect companion to the air conditioning compressor bracket we introduced some time back.

To see pictures, CAD drawings, installation instructions (or the “Buy it now” button if you’re so inclined) just click on this link:

http://kwikperf.com/lsx_alt_ps.html

Both bracket kits are available to match any of the three GM crank pulley positions.  If you want to see how to figure out which pulley you have, just click on this link:

http://kwikperf.com/pdf/kwik_tips_id_lsx_front_drive.pdf

Still more questions to ask before starting an engine swap project–Number 6

Wednesday, February 27th, 2008

Here’s one of at least 13 questions and it’s one you might not think of–

Do you have the patience?

This is related to the one about having the time but there’s also another side to the patience issue.

There are going to be lots of challenges come up, lots of problems to solve. And just when you think you have one figured out, something else pops up that un-figures out the last one. You’ll need a healthy dose of patience to work through those frustrations.

Here’s an example: Ken designed an alternator/power steering pump bracket for my Chevy LS engine to mount the Chevy alternator and my BMW PS pump. He drew it up in a fancy CAD program and I carved it out of a hunk of aluminum. Since Ken had access to GM CAD drawings, we knew it would fit the engine. But, he didn’t have any BMW CAD files so guess what? The bracket rubbed on one of the unibody frame rails. No problem I said. My trusty grinder will excise the offending material. Problem solved.

Until later.

We got the AC compressor bracket prototype built and it fit great. But, when we stood back and looked at the engine with all the brackets in place it just didn’t look right. The alternator/PS pump bracket mounted everything lower than the AC compressor. It was functional but it looked unbalanced.

Here’s where the patience issue comes in. Do we say, “Good enough is good enough. It’s functional and no one else will ever notice or care. Let’s get on with other stuff”?

Nope. Patience my dear fellow. If we don’t change it, it will bug me forever.

So, we start over on the driver’s side bracket and move everything up so it looks balanced with the passenger side. I’ll tell you, making a second prototype is not nearly as much fun for me as making the first one. But, the end result is worth it.

Here’s where the time issue we talked about last time and the patience issue come together. One of the ways to shorten the total time for your project is to do something, even a small something, regularly. Do some little thing every day if you can. At the same time, don’t get in a hurry. Focus on that one little thing. Enjoy the moment. Get into it. Hey, maybe it’s a Zen thing–becoming one with the metal–or something like that. Try to enjoy the fact that you’re making that bracket for a second time and make it the best bracket you possibly can and get satisfaction in that moment. String enough of those together and you’ll have a finished project. You’ll enjoy the journey AND the destination.

Questions to ask before you start an engine swap project–Number 5

Sunday, February 24th, 2008

Here’s another of at least 13 questions you should ask yourself before starting an engine swap project.

Do you have the time?

This is just like the money question. Everything takes twice as long as you think it will.

If your daily driver ‘88 Chevy pickup is about to puke its 350 on the street and you think it would be cool as well as practical to swap in an LS1 over the weekend, I have a newsflash–you’ll be hitchin’ a ride with your friends for a while.

Just making or buying engine mounts and getting the engine in the car is the quick and easy part. What takes up time are all the little things. Like spending a few hours with the shop manual tracing electrical circuits. Finding a place to mount some electrical relays. Convincing the auto parts guy to let you paw through his whole stock of radiator hoses to find that one special bend you need.

Most of us also have other things to do once in a while. Taking the kids to baseball practice. Fixing stuff around the house. Oh, and you’ll probably have a job (see the question about money again). So it’s a balancing act. Finding time for your life AND finding time for your project. Be prepared for one or the other to suffer from time to time.

Here’s some personal experience to make the point. I started my latest project a little over a year ago. I’m putting an all-aluminum 5.3 LS-series V8 in a 1987 BMW 535iS. At the same time, I decided to shoot sort of a video diary of the project. That meant I had to learn how to edit video. And learn how to post it on the internet (look for Geezer’s Garage on YouTube). And then I decided I should have some kind of web site where I could post pictures and stuff. More learning curve. And then I ran into the AC compressor issue so Ken and Kenny and I started developing an AC compressor bracket package. It looked good enough we decided to turn it into a product and sell it here on our web site. Oh, and I have a day job. And a 1-hour commute each way. And I became a grandfather for the first time last summer. And freezing rain has my shop door frozen shut right now. Are you starting to see a problem Bucky? Yep, my original target date for being on the street got pushed back a little.

In spite of all that, the project still moves forward. I’ll share some tips later about how to avoid getting stuck and stalled but let me put a plug in here for our little company–one of our goals for Ken, Kenny and I being in business is to help guys speed up their engine swap projects. We solve some of those gritty little issues for you–like the AC compressor bracket. Instead of spending hours hacking away at a chunk of aluminum, let Kwik Performance send you a bracket package that bolts on in minutes. Then you can spend your time on the stuff you can’t buy. OK, end of commercial. More later.

Questions to ask before you start an engine swap project–Number 4

Thursday, February 21st, 2008

We’ve identified at least 13 questions you should ask yourself before you start an engine swap project. Here’s another one:

Do you have or can you get the money?

Every law of the universe you’ve ever heard of will perch and defecate on your engine swap project. Murphy’s Law, The Peter Principle, The Law of Unintended Consequences and most importantly, the law of, Everything Costs Twice as Much as You Think It Will.

The $2000 or $4000 or $6000 you’ll spend for the engine and transmission? Just the beginning. One of my buddies believes there’s a law called, “The $200 Law”. Driveshaft? $200. Radiator? $200. Belts and hoses? $200. AC compressor? $200.

Maybe you can get set up with AutoZone or NAPA with a direct-deposit account. Just have your paycheck sent directly to them and get parts until it runs out.

Part of the reason my buddies and I formed Kwik Performance, Inc. came from our desire to save money on our own street rod and muscle car projects but still have stuff that worked really well and looked good at the same time. Not show quality. We don’t need no stinkin’ polished billet. But parts that looked sturdy and professional. That looked like they might have come from the factory. We first made those kinds of parts for ourselves, then we made them for our friends and now we make them for guys we’d like to have as friends.

I’m not bringing up the harsh financial reality to dissuade you from starting an engine swap, I’m just saying, be ready to invest more than you might think. If you’re having trouble making the rent payment, maybe you ought to wait.

Questions to ask before you start an engine swap project– Number 3

Wednesday, January 23rd, 2008

Will it meet emissions standards in your state?

 If you’re going to run this rig on the street, are you ready to jump through the inspection and licensing hoops of your state?  (Sorry about all you California guys.)

This topic could be a whole book by itself but here are some resources to help you understand what you’re facing:

Mike Knell of Jags That Run has a book series but the one to start with no matter what engine you plan to use would be:  “Chevrolet TPI and TBI Engine Swapping”.  He also has specific books on swapping into S-10, Datsun Z cars, Jaguars and even one on  Volvo swaps.  He also sells a lot of useful parts for engine swaps.   Go to: http://www.jagsthatrun.com/index.html   Mike’s books can also be found in many book stores and at Summit Racing and Jegs.

Forums to search and lurk:

http://www.ls1tech.com/forums/index.php

The general rule in most states is that the vehicle has to meet the standards of the engine and it has to have all the emissions equipment it originally came with.  Some states exempt cars built more than so many years ago or before a certain date.  For example, here in Missouri, only vehicles operated in major meteropolitan areas such as St. Louis and Kansas City have to be inspected and vehicles with historic or street rod plates are exempt from emissions inspections no matter where operated.

Questions to ask before you start an engine swap–Number 2

Friday, January 18th, 2008

We’ve identified at least 13 questions to ask yourself before you start an engine swap project. Here’s another of them:

“Is the car worth it?”

Here’s the deal–engine swaps can cost a lot of money. And a lot of time. And it’s always more than you think it’s going to be. So, is the rest of the car worth the new engine and all the rest of the upgrades you’ll have to make?

Two examples:

1. A couple of years ago, I did a pretty easy swap–I pulled out a tired Chevy 350 and bolted in a fresh 454. The vehicle is a 1978 GMC 1-ton dually, crew cab, automatic, 4WD. Something I use once in a while to pull a goose-neck trailer to haul my wife’s bulldozer or to haul a car project.

This kind of swap is about as easy as it gets. No transmission change, no radiator change, no steering issues. Pretty much plug and play. And boy is there a difference in power between a tired 350 and a fresh 454.

I’m glad I did the swap. However…..the truck has the traditional GM rust issues in the front fenders. A windstorm damaged the hood and one door. One of our 4 English Mastiffs (who love riding where the back seat used to be) lunged at something and cracked one of the back windows, and it has a horrible shimmy in the front axle at certain speeds. I’m pretty sure that if I wanted to sell or trade the truck, I would get back very little of the money I spent on the 454 engine and all the little stuff I replaced during the swap. I’ll eventually drive my investment out of it but the engine is probably worth as much as the rest of the truck.

2. My current project is stuffing a 5.3 Chevy V8 into a 1987 BMW 535iS. What prompted this project was the original automatic transmission finally gave up the ghost at 220,000 miles. The BMW dealer wanted $3000 for a factory rebuild. That’s about the value of the car. And I’d still have a tired engine.

So, my gearhead buddies, Ken and Kenny, kept poking at me saying things like, “Hey Mr. Hot Rod, if you had any cajones at all you’d put a nice big V8 in there.” So that’s what I’m doing and I think the car is worth the effort. I’ll end up with more than $3000 in the swap but I’ll also end up with a car that has a rust-free body, an almost perfect interior, great ride and handling and soon, reliable GM power. It will once again be part of the daily-driver fleet taking me on my 100 mile per day round trip commute.

I’m expecting gas mileage as good as the old 6 cylinder, lots more power with no change in ride and handling due to the all-aluminum V8 weighing only about 60 lbs. more than the old 6.

I love the car, I’ve owned it for 10 years and I’ll be happy driving it forever. In this case, market value of the finished swap has no bearing. It’s all about the personal enjoyment and use I’ll get from it.

There you have two examples of the question, “Is the car worth it?” The first is questionable, the second is a definite “yes”. Which is it for your project?

Questions to ask before you start an engine swap–Number 1

Wednesday, January 16th, 2008

We’ve identified at least 13 questions to ask yourself before you start an engine swap project. Here’s one of them:

“What do you really want from your engine swap project?”

In other words, why go through all the toil, sweat and tears, oh, and money? Everyone has a different motivation–just be clear about yours.

Below are some possibilities. Some of these are my own, some are the ones I used to justify the money to my wife, and some are ones I’ve observed in other gearheads. See if any fit you.

1. More power. Argh, argh. Yeah, gearheads are power freaks and we never outgrow our need for speed. Engine swaps can work well for the guy who doesn’t have the patience to re-work the internals of the engine he already has. Just shoe-horn in a bigger engine and let cubic inches do the work for you.

2. Reliability. Jam in a low-stress big block and get 400 to 500 ft. lbs. of torque at low RPM. Or, build up a peaky small block and that’s always on the ragged edge of breaking. One just keeps on truckin’ with no problems, the other can take a lot more shop time. Or, like my BMW, the old engine was tired, the transmission was shot and it was going to cost a lot of money just to end up with something that would still need a lot of expensive maintenance. A late model Chevy V8 with low miles will outlast the rest of the car with minimal cost. Well, after it’s finally installed.

3. Bragging rights. I confess. This is one of my motivations for my Chevy 5.3 LS family engine swap in a 5-series BMW project. I want to coast in to cruise night at the local drive-in, pop the hood and have people say, “Wow! How’d you do that?”

4. Accomplishment. There’s a big internal pay-off to finishing a complex project like an engine swap. You’ve had to tackle every major automotive system and modify most of them. You’ve solved one obstacle after another and it feels good to come out the other side with something that meets all your original objectives–it looks good, it goes like scat, all your buddies are envious and maybe it’s even practical–something you can drive every day. What would you rather do in your spare time–break 100 in golf (whatever that means)? Or drive a car that you personally built? Yeah, the car.

I’m sure you can think of a lot of other reasons to do an engine swap. My main point is this: Just be sure you’re clear about what your own personal objectives are. So that when you run into obstacles, and you will, you’ll have that vision of the end result to keep you motivated to push on through.

There’s a guy named Stephen Covey who wrote a book called, “The 7 Habits of Highly Effective People”. Habit number 2 is, “begin with the end in mind”. In other words, get really clear about what you want to end up with–before you start. You’ll have a much better chance of getting what you want.