2.8 alu head replacement

[calisonic]

hey there, quick question
will aluminum heads from a 1988 2.8 corsica fit up to a 3.1 from a 1992 lumina van? and will the intake from the throttle body lumina cause any clearance issues with the MPFI corsy heads?
thanx

[geoffinbc]

No. The Lumina van used Iron heads and TBI. None of the aluminum heads even come close to fitting the TBI intake. Also the pistons in a RWD block would increase the compression beyond 11:1 and you would need careful tuning and premium gas in order to keep them.

[calisonic]

so the only possibility would be a mpfi conversion then?

[geoffinbc]

Yes. But if your taking that project on just forget it and get a 3X00 top end and use that. More power for nearly the same price since 3400's are a dime a dozen in the junkyard now.

[calisonic]

thanx

[calisonic]

what about the crank from a 3.1 corsy in the 3.1 lumina van?

[merlot566jka]

same, whats the point here?

[85_Olds_Ciera]

....get a 3X00 top end and use that. More power for nearly the same price since 3400's are a dime a dozen in the junkyard now.

Top End - Everything above block?

Fat chance 3.8 motor iron heads work on 2.8/3.1 motors?

[IsaacHayes]

3.8 are 90* motors not 60*.