825 HP SBC 23 degree heads 400 ci.

[Egoracing]

I LOVE when you talk to someone at the track and they tell you they are getting 800+ hp out of a 23* motor, it is even better when they are using a stock production block.

[Emjay]

Hey Ego,

What has been going on.

Emjay

[F22 RAPTOR]

I LOVE when you talk to someone at the track and they tell you they are getting 800+ hp out of a 23* motor, it is even better when they are using a stock production block.

I'm not a motor guy and thats just silly, even I know better than that.

Who would be a good cam grinder for 23 deg heads?
Best Intake?
What cranks should I stay away from?

[sj valley dave]

We run a 421" SB2.2, 15:1 engine with all the good stuff in it and it made 819 on an honest dyno built by a gentleman that is no longer with us on this board. The heads flowed somewhere in the 415-420 range if I remember right. 800+ hp out of a 23* head that is usable in a dirt car?? Nah, would not believe it...but you do know what PT Barnum said about suckers!!! LOL

[masters19]

Looked at Mullins website and it says theu are making 750hp with their 23 degree head. Has anyone run these and can verify this?

[charcoal01]

Does it say at what rpm they're making that power? Guy who was looking into a Mullins said you had to turn those motors into the mid 8's to get to that power.

[F22 RAPTOR]

Does it say at what rpm they're making that power? Guy who was looking into a Mullins said you had to turn those motors into the mid 8's to get to that power.

Thats higher than I really wanted to turn, I was thinking mid to high 7's, 8 max. So are Mullins heads no good at lower rpm's or simply the cam he's using or both?