Highest flowing sbm heads?

this is from a post on the “ other” forum a few years back.
I know Mopar Billy went 10.30’s at 128. Don’t remember what his car weighed. Don’t remember it being light


Hi All,

For those interested, I got my Airwolf/ Bloomer combo going after a few years of gathering parts!

The engine was built by Marcus Giobbi at Bullet Race Engineering in Adelaide, South Australia. They do a lot of high-end billet stuff so in comparison to all that, my engine is a bit agricultural.

After all this time and effort, I've got to say I'm pretty happy with it, and the engine builder was really impressed with the quality of the heads and the crank.

The only real issue we had was with valvetrain geometry, and associated spring to rocker clearance, but that was fixed pretty easily.

“Anyway, long story short - combo is as follows;

360 +.040
Bloomer 4.25 crank with 11.7 comp
98 Octane fuel
Air Wolf heads
Solid Roller Cam - 257 duration @ .050 .645 lift
1050 Quick Fuel 4150 Carb

Dyno'd at 625hp @ 6100 with peak 597ft/lbs of torque at 5100.

Torque was 580 from 4200”


One for comparison

.030 over 360 stock crank
Flat top pistons
Open chamber 195 cc Edelbrock heads
.620 lift roller cam
750 alcohol carb
727 transmission
4.10 gears
3200 pounds
Ran 6.54 not once but 4 times
Here’s a conversion chart for you.

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