because im different. thats why im not doing L67. the tranny is a 4t65e-HD. im not sure what tuner it is its my buddys. i think its a HP tuner

no offense, but this isn't fashion... different isn't really good. you will find much more help and support if you do something more common (plus it will work better.. there is a reason it'* the common way)

did you really expect to hear different replies than what you are getting here?

http://rivperformance.editboard.com/...rivi-t3050.htm

doing an L67 top swap onto a L36 is just stupid when you consider how much extra work you are making yourself. Good luck being "different"

I'd have to agree this is a ridiculous swap in the wrong direction. Weaker wrist pins, wrong pistons, weaker rods......and the complications of mating the L67 top end to the deck.

Just absolutely pointless IMO. If you want to be different, buy a LeCar and swap in a Cobalt SS motor.

if its so ridiculous then why do some many grand prix GT'* do the top swap

i hear of many gp guys doing this swap too, but how long do they last? it just seems like adding boost to an engine that has 9.5:1 compression, is a bad idea. not to mention the internals are weaker than gm felt necessary to last.

Because. its cheaper for them because they already have an L36.
IMO if your already doing an obd2 conversion and motor swap its a much better idea to just put an L67 and it will save you money and time in the end.
any 95 rivera with a series 2 L67 is pretty unique IMO

they do it because its cheaper then pulling ther working L36 and replacing with an L67...
I also hear they need a SC pulley thats about the same size as a HB pulley to make up for the compression difference.

If you wanted higher compresion, couldnt you just shave the heads a touch while using an L67 block, thus getting the stronger internals? :?

And thinner head gaskets.

Very much the wrong direction here.

well thanks for ur advise