Yeah you nailed it! I read through a lot of Andy’s tech articles while working with these heads. His 470 went 1.597hp/cube with similar compression and a dry sump illustrating the potential of these heads so our 1.553hp/cube is in the ball park but shows areas for improvement. I could have bolted on a vacuum pump and seen a slight improvement but it isn’t gonna be ran that way in the car so it was a mute point.
WHAT!?!
Depends on what it’s in and how it’s used. This engine would have to have a different cam and springs for your application but I think a 700hp stock block stroker would still be alive and well in your car long after your gone if maintained properly. The block was nice and thick when I sonic checked it.
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I don’t have any solid A-B testing but I would guess the 2” TTI would make more low rpm torque and a little less peak power.
very nice,,thanks for posting this,,,makes me feel even better about the set i have still in the boxs on the shelf for my new motor..and those numbers r the same andy f posted on his combo.
He was still getting it all together at the end of August (waiting on a trans and converter I think) so I don’t think it’s been to the track yet. I’ll check in with him and see where he’s at with it.
It hasn’t made a pass yet. He bought a used MSD and the two step wouldn’t work and then the impeller came off of his water pump. Not sure what pump he has. It’ll be out this spring.
Hydraulic roller?
Solid roller.
This engine is a bracket race/car show/ cruise in type deal that won’t see many street miles. In a real street car, I’ve used BAM, Morel and even the comps. My 572 Hemi ran comps for ten years on one set running a bunch of drag and drives. My current 540 runs the BAM bushing lifters and it’s been together for 5 year’s running multiple drag and drives, lots of street driving and racing. Keeping the ramp rates sane, and making sure the valve spring rate and rpm range are in alignment is key to longevity. I’ve seen lifters beat to death in a matter of weeks if it’s not happy.
