Best Head choice for friends 521 bbf

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Best Head choice for friends 521 bbf

Post  nathan mann on July 21st 2011, 9:12 pm

What do you all think is the best head for my friends 521 with around 11 to 1 compression and solid roller cam(we do not have cam yet).The two heads that he is looking at are the P-51 or the TFS A-460.He will drive the motor on the street,but is wanting all he can get horsepower wise because he is building for drag week.

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Re: Best Head choice for friends 521 bbf

Post  rmcomprandy on July 21st 2011, 11:46 pm

Need more information like, how much money is he prepared to spend on heads and how much torque & horsepower is he wishing to get; at what RPM range.

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Re: Best Head choice for friends 521 bbf

Post  '65 T-BOLT on July 22nd 2011, 7:20 am

on top of what Randy said...what pistons are currently being used? on my 521(ford motorsports crate) I can use SCJ's or P51 not the A460 unless I change pistons.
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Re: Best Head choice for friends 521 bbf

Post  BOSS 429 on January 28th 2012, 9:46 pm

nathan mann wrote:What do you all think is the best head for my friends 521 with around 11 to 1 compression and solid roller cam(we do not have cam yet).The two heads that he is looking at are the P-51 or the TFS A-460.He will drive the motor on the street,but is wanting all he can get horsepower wise because he is building for drag week.


how did this turn out? what did you dec d to do?
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