AFR Heads on 512 with 11 to 1

Will have the dyno sheet but customer's customer just got it off the dyno 780HP and 750#/ft with a set of the AFR 300 Bullitt Heads.

Very nice. Looks like tremendous torque for an 11:1 CR build.
Details hopefully will be coming.

Scotty J just finished his pump gas AFR 300 build posted on 460ford:
All engine build details see attached:

http://www.460ford.com/forum/37-engine-tech/233226-557-afr-300s-street-build-750-hp-%40-6-100-a.html

Peak HP was at 6600. Dyno sheet getting sent today. We used CP for the pistons on this build so they do have the prints on the AFR head for pistons.

Torque
3600 699.3#/ft
5000 738#/ft Peak Torque
5700 698#/ft

HP
5000 rpm 703HP (Breaks 700)
6500/6600 773.2

36 degrees of timing
Mix of 91octane and 110

Sounds very respectable indeed.
The 36 degrees advance seems higher than I expected. Was this an 85cc chamber version?
Anyhow we will learn more as more of these builds start being posted.

Cheers

Both combo's showed 750 TQ and 773 hp on two different dynos. Interesting coincidence.





S

Not bad, Mr. Straub.

Scotty - post up your build that I saw on facebook.  It's a good read and people are waiting to hear about the results on these chunks of aluminum.

windsor wrote:Not bad, Mr. Straub.

Scotty - post up your build that I saw on facebook.  It's a good read and people are waiting to hear about the results on these chunks of aluminum.

For 512CID I thought it respectable.

Straubtech wrote:Will have the dyno sheet but customer's customer just got it off the dyno  780HP and 750#/ft with a set of the AFR 300 Bullitt Heads.

Sounds like a real true street contender in a 64 Fairlane !

Straubtech wrote:Will have the dyno sheet but customer's customer just got it off the dyno  780HP and 750#/ft with a set of the AFR 300 Bullitt Heads.

Nice result on your 512.
What are the specs on the cam?

Gary Blair wrote:

Straubtech wrote:Will have the dyno sheet but customer's customer just got it off the dyno  780HP and 750#/ft with a set of the AFR 300 Bullitt Heads.

Nice result on your 512.
What are the specs on the cam?

Gary,
Server is down so I don't have it in front of me sir. Once it is up I will post them.

Straubtech wrote:

Gary Blair wrote:

Straubtech wrote:Will have the dyno sheet but customer's customer just got it off the dyno  780HP and 750#/ft with a set of the AFR 300 Bullitt Heads.

Nice result on your 512.
What are the specs on the cam?

Gary,
Server is down so I don't have it in front of me sir.   Once it is up I will post them.

Server up?

Yes. Thanks for reminding me. Let me get it it.

.738/.692 Gross
265/278
109

Straubtech wrote:.738/.692 Gross
265/278
109

Smaller than the SAMS P-51 pumpgas 532. Pretty much same power. Thanks.

Gary Blair wrote:

Straubtech wrote:.738/.692 Gross
265/278
109

Smaller than the SAMS P-51 pumpgas 532. Pretty much same power. Thanks.

Cross section on this head as Foxwell pointed out to me is the same as the AFR335. So it won't need much camshaft to make power. Your welcome sir and Merry Christmas!!