Ideas on engine options for 71 Formula Brewster Green

[71-Formula]

http://uploads.tapatalk-cdn.com/20160917/3262f27c68e5242a7d96b44c0181cf93.jpg


So I'm torn on powering this car. Since the car is original to my family from 71, do I modernize the existing engine Pontiac 400 with someone like Butler OR do I go LT4 or something similar?

I want to be in the 750 plus hp range and forced induction for sure.

Would love some ideas and perhaps some pics on other F body Bird or Camaro builds in the engine compartment.

Thanks



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[andrewb70]

GM showed a second get f-bdy with a LT4 under the hood at last year's SEMA show. Google will get you pictures...

Also, your car would look bitchen with gold wheels.

Andrew

[alex n]

Nice looking car. I would stay Pontiac with a turbo or two, my .02

[Musclerodz]

LS or LT are corporate motors so in theory it can be considered a pontiac. I would definitely go LS or LT

[4mul8ion]

That is a great looking Formula!

As far as powering it, I don't think keeping what I am assuming is the original Pontiac 400 makes sense due to the other mods you're planning for the car. If you're going to do 750 hp forced induction, I think the better choice is to stick with the LS / LT platform. The aftermarket support for the Pontiac engine is the best it has ever been but it's nothing like the LSx support.

I went with an aftermarket Butler aluminum 505 Pontiac based engine with multiport EFI for a planned 600 hp / 600 tq, get it under the stock Formula hood and add a little weight savings to the mix.

http://i1127.photobucket.com/albums/l635/jenskik/1970%20Pontiac%20Pics/IMG_0120.jpg

http://i1127.photobucket.com/albums/l635/jenskik/1970%20Pontiac%20Pics/IMG_0119_zpsb5yp1cit.jpg

[Zoomin]

GM showed a second get f-bdy with a LT4 under the hood at last year's SEMA show. Google will get you pictures...

Also, your car would look bitchen with gold wheels.

Andrew

Yep!

Great looking car - do a build thread :cheering: