pro comp heads vs older afr heads

[cstraub]

There isn't one part that makes a great engine, there is a great combination of parts that makes an engine. I've had customer throw $6K heads at a combintion just for it to slow down .2ths.

 

[franks70camaro]

i got aluminum heads on my 383 now there 210 procomps i just picked up n older set of aluminum afr heads n was wonderin if the afr 210 would b better then the procomp 210 head

 

[cstraub]

The better combination of parts will make more power. Now if you asking will the AFR's make more POTENTIAL power? Yes they flow more air. It will take a cam change to make the head reach its potential. Just cammed a 383 crate engine, 42#/ft more torque and 37HP on AVERAGE from 3500 to 6000. Smaller cam.

 

[CNC BLOCKS]

The better combination of parts will make more power. Now if you asking will the AFR's make more POTENTIAL power? Yes they flow more air. It will take a cam change to make the head reach its potential. Just cammed a 383 crate engine, 42#/ft more torque and 37HP on AVERAGE from 3500 to 6000. Smaller cam.

X1000000000000000000000

 

[franks70camaro]

Have A Comp Cams Xe270 Hydraulic Roller Cam In It Now What Would U Recomend Steppin The Cam Up Too I Think The Cam I Got Now A Lil Small

 

[cstraub]

Have A Comp Cams Xe270 Hydraulic Roller Cam In It Now What Would U Recomend Steppin The Cam Up Too I Think The Cam I Got Now A Lil Small

The better the head the smaller the cam. The cam I put in that 383 aboe was 4 degrees small on the intake and 6 degrees on the exhaust.

 

[CNC BLOCKS]

The better the head the smaller the cam. The cam I put in that 383 aboe was 4 degrees small on the intake and 6 degrees on the exhaust.

X2

 

[newschool72]

The better the head the smaller the cam. The cam I put in that 383 aboe was 4 degrees small on the intake and 6 degrees on the exhaust.

This is exactly the reason an LS makes such good power with nothing more than a cam swap on a stock long block. With any engine , the more efficient the heads ,the more power you can make. If an example head flows 260cfms at .4 lift, and another flows 290cfm at the same .400 lift, the second head will flow more A/F and require less cam duration and lift to get equal, or better HP and TQ. Smaller cam almost always give better average power than an over the top cam. Of course , all of this is very generalized , but the concept is undeniable .
Without a doubt, the introduction of better, more efficient heads has been the biggest contributor to the old SBC being able to keep pace with the new engine designs the OEs have been giving us in the last 10 years or so.

 

[franks70camaro]

so what cam would u guys recomend i put in my 383 to get the most burn ur tires power lmao

 

[AJ_72]

This is exactly the reason an LS makes such good power with nothing more than a cam swap on a stock long block. With any engine , the more efficient the heads ,the more power you can make. If an example head flows 260cfms at .4 lift, and another with the same size intake runners flows 290cfm at the same .400 lift, the second head will flow more A/F and require less cam duration and lift to get equal, or better HP and TQ. Smaller cam almost always give better average power than an over the top cam. Of course , all of this is very generalized , but the concept is undeniable .
Without a doubt, the introduction of better, more efficient heads has been the biggest contributor to the old SBC being able to keep pace with the new engine designs the OEs have been giving us in the last 10 years or so.