newer intake onto older block

[wirtner]

is it possable to swap a 3100 intake manifold off a 1994 grand am gt onto a 3.1 out of a 1991 z24 cavi

[robertisaar]

the GA is a 3100, while the cav is a 3.1. you could get it to work, but you'll need specific gaskets. check out wot-tech.com

[geoffinbc]

You need to use the 3100 heads. Your basically making a Hybrid 3.1L

[Superdave]

the upper intake is completely different... but if you use the matching lower intake and the 3100 heads along with a 3100 timing cover, power steering pump, fuel rail and other misc stuff it works fine.. quick way to gain 20 HP or so.

http://www.domesticcrew.com/hybrid.html

[1988GTU]

Also why use the small port when the bigger ports are desired?
I have most of the parts, all u need now are the heads.

http://60degreev6.com/forum/f105/3400-lim-and-uim-w-t-tb-t42962

[1988GTU]

So you ever decide on if you're going to use the big port heads/intakes on the 3.1mpfi?


Hey dave, why do u need to use the 3x00 timing cover?

[Superdave]

So you ever decide on if you're going to use the big port heads/intakes on the 3.1mpfi?


Hey dave, why do u need to use the 3x00 timing cover?

because you need to use the 3x00 power steering pump to clear the UIM. The gen2 one is too fat.

[1988GTU]

Man dave, what you trying to say? Gen2's are too fat?











Thanks for the info.

[z284pwr]

With all the resources and information available now, why not just swap the entire engine?

[robertisaar]

With all the resources and information available now, why not just swap the entire engine?

this crossed my mind a few times as well. there were quite a few upgrades that the gen3 blocks got compared to the gen2, right? the only one i can think of right now is oiling, but its important. that and how low of miles can you find on even the least driven gen 2? newer blocks just scream more reliabilty...