93 3.4l dohc mod ?'s

[HayesPerformance]

There are ton's of mods you can do!!!

I have always swapped to 96' heads with no problems...


The MMS Headers are great, I have a set, NOT worth 1000 bucks though!

I would recommend getting a set made though.

[RedZMonte]

can somone verify for me that the pre-94 W-bodies the fire wall is closer to the engine then the 1994+ w-bodies (except Lumina Z34, firewall wan't changed threw '94). i wonder how the headers would fit, would they need to be tweeked?

[robertisaar]

AFAIK, all 1st gen Ws have the same firewall... the 1.5 firewall may be different though...

[pocket-rocket]

I've heard the later ones had the firewall farther back, but never really payed attention. I should have noticed too when I was getting my 96 heads off the car at the yard last year since I had to pull the intake off and that sits farther back then the older intake. I wouldn't doubt that the firewall is farther back the more I think about it.

[grandprixgtp_93]

ok so i got some money together and i purchased a set of 96 heads uim lim exhaust manifolds and the parts needed for a conversion...my friends dad is also working on fabricating me a set of headers and crossoverpipe and full exhaust deleting the u bend i just had my block remachined back to spec anyone else have any ideas of things i can do b4 this thing goes back together i have about 2500 left to spend

[RedZMonte]

the heads is where i would focus....porting/pollishing, valve seals, springs/retainers, ect...

[Artemis]

ok so i got some money together and i purchased a set of 96 heads uim lim exhaust manifolds and the parts needed for a conversion...my friends dad is also working on fabricating me a set of headers and crossoverpipe and full exhaust deleting the u bend i just had my block remachined back to spec anyone else have any ideas of things i can do b4 this thing goes back together i have about 2500 left to spend

Feel like getting your uncle to fabricate more than 1 set of headers?!

[pocket-rocket]

I would use the rest to beef up your 4t60-e if you are content on staying with an auto.

[RedZMonte]

I would use the rest to beef up your 4t60-e if you are content on staying with an auto.

PFFFF whatever! the 4T60-E is bullet proof... (if shot with a bebe gun)

Besides the DOHC doesn't make TQ so you don't have to worry about it breaking.... My stock 4T60 is at 150K+ miles now and going strong... do trans filter and fluid service every 30K miles and add a large trans cooler (i have a B&M Supercooler) and let it ride... Just my Opinion..

S

[pocket-rocket]

Hmm, interesting. My 91 had gone through 3 4t60-e's by the time it hit 130k, and I did regular fluid/filter changes on them. The one I pulled out at 101k had a rebuilt by Hydromatic for GM sticker on it, so that was #2. The 3rd one (the first one I put in) got B&M Trick Shift and a cooler big enough for something retarded like a 14k gross vehicle weight truck, and it still blew. That's when the 5 speed went in. I don't believe the older 4t60-e's are as strong as the later ones, but who knows.

[RedZMonte]

lol it seems to be hit or miss... I bought my MC with ~36,000 miles on it and now has about 150,000. for the last ~50-55,000 have been turboed and daily driven. i do drive harder then most but never do anything like neutral drop or burn outs... Also i live 5000+ ft elevation so i build far less initial tq then you guys at sea level.

S

[timg]

Shane's lucky. I think my transmission blew around 20k miles after I went turbo. I actually shattered the input shaft when it tried to do a 1-2 shift... It had been slipping for a while, and apparently it slipped then grabbed all at once and that was it.

Tim