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Thread: Aluminum Head Swap Info (with pics)

  1. #61
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    Listen to Forced. He knows what he's doing and what he's talking about.
    Last edited by WCFB-Russ; 07-24-2012 at 03:26 PM.

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  3. #62
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    Quote Originally Posted by Damionsfuturedemoncamaro View Post
    No I bought pushrods for a 91 cavalier. I cant remember if it was this thread or another one but someone posted on a thread that the pushrods from a 89-91 3100 would work and that their lengths were 6.042 &6.382 and when I ordered them I double checked the lenghts to make sure of that. And about the gen 2 350 I know I would have to cut the cowl to make room for the distributor. I have done so much research into both options my head is about to explode or I feel like it is anyway... I have had a headache for the last 2 months figuratively and literally. Hahaha
    I don't know what cam you were using, but I have sold TONS of top end swaps and only had one issue using the Gen2 push-rods and that was on a radical cam. You need to be turning the rocker bolt ~1.5 turns after zero lash until the bolt seats. If you have much more than that, the rods are too long, if you have less than .75 turns to seat then they are too short.

    Quote Originally Posted by WCFB-Russ View Post
    Listen to Forced. He knows what he's doing and what he's talking about.
    Is this the Russ? How you been?


  4. #63
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    Reflective. Realizing I was a bit immature in "taking my ball and going home" the way i did all those years ago -- want to apologize to everyone for being a douche.

    You and I need to talk about motors. drop me a line on im

  5. #64

    Hey john. "forced firebird"

    Just wondering what does your complete top end 3500 swap start at? Price wise

  6. #65
    Sorry to revive an old thread but I am about to undertake this swap for my 1994 ironhead 3.4 CPI that I have in my rock buggy. See attached photo. camer34.jpg

    So correct me if I am wrong on any of this and please try to answer my questions...

    This engine is connected to a NON computerized turbo 350 transmission.

    So the parts I need from the wrecker are?:

    From a 2000+ 3400 Grand Am GT:
    Gen III Aluminum Heads
    Plenum (Upper Intake Manifold)
    Lower Intake Manifold
    Fuel Rail
    Fuel Injectors
    Throttle Body
    Water Neck

    What about Pistons? Do I need them out of the 2000+ 3400 Grand Am GT doner motor or do I use my stock 3.4 pistons? If I DO need the pistons from the doner do I also need the rods?

    The other write up says I need a oil filter... Is that just a new oil filter or is it a different part number oil filter I need?

    I do run a mild cam (not sure what size but could confirm this when I pull the motor) Assuming it is a mild cam do I need to make changes to the valve springs or shims on the 3400 aluminum heads that i will be swapping on? My Iron heads don't appear to have any aftermarket springs or shims on them.

    What about the lifters and pushrods in my 3.4? Will those two things work with this swap or do I need to get different lifter and pushrods and if so what ones exactly?

    Head gaskets... What will I need? 3.4 or 3400 ones?

    Thanks in advance, I look forward to your replies.

  7. #66
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    If you just do the heads/intake you can use any parts that fit in the 3.4 block (if its a rwd 3.4). The part list looks about right, let me update the water neck part with this little baby here - made things a lot easier: http://www.britishcarconversions.com...-billet-detail

    if that link disappears pm me and ill get it to you as soon as i see the post.

    Cam doesn't matter. You need the pistons from the engine you are swapping from or new ones that would fit into that engine. Otherwise you have to do machine work on the heads / pistons to make them run a proper CR.

    You will need to basically change everything above the cam. lifters are fine but custom pushrods, rocker arms, etc.

    head gaskets - get all gaskets topend for the 3400.

    John @ 60degree would be the guy to talk to

  8. #67
    Quote Originally Posted by Forced_Firebird View Post
    No, the intake manifolds have to match the heads, iron heads = 3.4 manifolds, aluminum heads = 3x00 manifolds. Don't forget if you aren't tuning you will also need FWD pistons (3100 and 3400 heads have small chambers and can't be used with RWD pistons without enlarging the chambers or using race gas only).
    Has there been anyone that you have known to use any other higher flowing manifolds bolted on to the 3.4l iron heads? I've had my stroker engine from ARI Racing for about 8 years or so and I just saw the tuner program from Tuner CATS. I've been playing with the air fuel ratios and now I'm trying to get more air flow. My heads have been ported and polished as a part of that package, but it looks like all of the 3x00 upper and lower manifolds require the aluminum heads. Am I stuck with the 3.4l manifolds?

    I've been reading through and cannot quite find anything other than the quote above. Thanks!

  9. #68

    Roller cam and lifters

    I'm new to the 60 degree and am still collecting information before shopping for parts and a rear wheel block. Some FWD blocks have roller lifters. Have they been used in RWD? If they are available in the aftermarket are they worth the expense for a street engine?

  10. #69
    173WHP Supernatural 2.8 Iron head V6 (185cfm @ .500 lift)
    Mods:
    Supernatural TR2 Intake
    Supernatural hydraulic cam
    Supernatural iron heads
    Stock bottom end.
    Last edited by La Fiera; 05-19-2018 at 07:54 PM. Reason: spelling

  11. #70
    In action

  12. #71

    Help

    Quote Originally Posted by Black34v6 View Post
    Ok ppl. I'm bored and I remembered I promised the 3.4 owners that I would do some kind of writeup, and I've been lagging on making a word document, so - I'll just post the thing here. This will be a step-by-step writeup as I remember changes that I did to the engine. This happened in 2001 so it might take a while before I get all of the information up here.

    Please don't muck up this instruction set with posts inside of it - if you have any questions (any at all about anything) PM me and I will answer them. If I feel they havent been asked before or are relevant to the process I will add them to this post kind of like eBay does with questions asked on bids.

    I would like to keep this as clean as possible. Once again: This wont be completed all at once. I will add to it as I go - I will post it here first for the mods/admins to make this a sticky on the site, but it will also move to my car club site in my Newsletter section. My URL is in my signature. Happy reading!

    Gen III ("3400") Aluminum Head Swap Required Parts:

    (If you want to start slightly less expensive, you can find parts from a 3100 engine, like I did, a 1996 Grand Am GT. These parts are also available on various other cars.)

    From a 2000+ 3400 Grand Am GT:
    Gen III Aluminum Heads
    Plenum (Upper Intake Manifold)
    Lower Intake Manifold
    Fuel Rail
    Fuel Injectors
    Throttle Body
    Water Neck

    Other Parts:
    RKSport 3.4L Headers
    GM 3-Wire Temperature Sensor (p/n: 10096181)
    GM 3-Wire Temperature Sensor Plug (p/n: 12102748)
    Aeroquip NPT-AN Adapter (Available @ summitracing.com: p/n coming soon)
    Aeroquip Socketless Hose Ends (Available @ summitracing.com: p/n coming soon)

    Preperation

    Things must be done before you just slap the heads and intake onto the 60 V6 RWD block. I would definitely make sure you have the following items (as they will need to be replaced):

    1 Oil Filter
    4-5 Quarts Mobil 1 10w30 Synthetic

    Also make sure you have new o-rings for the injectors just in case you break/lose any, and I would recommend getting a new thermostat (not needed

    You will need to remove the engine to do this swap, so make sure you have/rent a engine hoist (it can be done through the hood, I have done so)

    (Note: Now is a good time to change your clutch if its worn, or to replace motor mounts, wiring harnesses, other equipment that the engine may be in the way of. )
    Do i need to get the upper and lower intakes as well? I have a 1995 Camaro 3.4l it has ported and polished upper and lower intake manifolds and throttle body already on it. Would i be able to bolt up the grand am aluminum heads while using the stock manifolds still? And if so i planned on porting and polishing the aluminum heads before i bolt them on. Any answers would be great thanks!

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