Trans Am Information > DriveTrain
455 cylinder head question
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gasman2b93:
I’m building a 455 for my wife’s 79 T/A. I have a complete 1973 motor with 4X heads and want to use different, factory heads. My plan is to use the factory crank and upgrade to a roller cam/rocker setup. I have someone selling both #94 and #99 heads, are these a good fit for this motor? I’m not looking for a screamer, but want something that’s able to get up and go. Any feedback will be very helpful.
Tammy:
Both are 96 cc heads, so you'd have to watch your compression ratio.. depending on your deck height, should be about 9 -9.5 to 1. With the roller set up, you need to have screw in rocker studs. Just my opinion of coarse... Not a screamer, but yes, plenty of fun!
Wallington:
When you have gobs of torque you don't need it to be a screamer.
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