I want to know how high of a piston compression i can run on normal gas and How much power I can easily get out of both the 327 and the 383 with not a real wild cam and which motor will crank the most RPMS?
Thanks

 

327
-power from reving high
-means crazy cam
--means low mpg
--harder to pass smog

383
-power from torque
-more expensice parts to make spin high
-better on mpg(because of torque)

etc.
I'm tired
more later

 

I would much rather have a 383 under my hood.

 

i'm planig on doing a 383 build up. 383s 4 ever

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when the green flag drops the bull$hit stops

350,performer RPM intake ,650dp, 700r4, headers, 3inch exhast

 

I agree with everyone else, a 383 would be a better choice, and if you worried about the power -> mpg type thing. Depending on what type of fuel injection method you use. I know of a guy pulling 19 mpg in city with his 383. I have no idea what parts, etc that he's useing but i know its fast and get dang good gas mileage. Then again its carbed, little easier to tune. At least from what i remember (been a while since i've messed with a carb)

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89 IROC-Z 350 TPI

-Flowmaster Catback
-Performance Resource Chip
-Rebuilt 700R4 Tranny
With the goodies to go

-K&N Airfilters
-Ported Plenum
-2.77 Gears (not much to brag about but eh, its there)

 

i'd also say the 383. only time it is not a better choice is if you have a small car. same hp can be made with both, but 327 will have to be twisted up alot higher to make it and have considerably less torque.