464 cid pump gas Pontiac engine on the dyno makes 622 horsepower and 622ft lbs of torque

9 months ago
53

Here is the 464 on the dyno part 1 on this engine. In this video you will see a warm up, a 600 rpm per pull and then a 300 rpm per pull. We chased the timing but not the fuel on this setup as we were just after a baseline to see the potential of the combo before switching over and testing the new Tri-power stuff (KRE Trade Wind Intake and FiTech EFI Tri-power)

This is a 4.190 bore 4.210 stroke bottom end with BME aluminum rods. Stock 1967 Pontiac 2 bolt block - studded. Sealed up with a complete Tin Indian Performance gasket set and rear main seal. We used a Rollmaster timing chain and one of our custom ground hyd roller cams with Crower solid roller lifters - our Pro Warrior HO RAIV grind to feed the Kauffman Racing Equipment 80 CC as cast High Port Heads. A 2957 Victor intake was used with a Holley 1050 Dominator with a 1" HVH spacer. 93 BP pump gas was used during the dyno session. This combo pulled 14 - 15 inches of vac at idle (between 800 - 900 rpm). The vac figure you see on the dyno computer showing 8" of vac was the vac pump reading at idle. We were pulling between 13.8" at 3800 rpm up to 15.7" at 6000 rpm.

We think we could get a little more out of this if we chased the fuel but we were very please with the power this combo made despite being VERY VERY mild.

The best pull was 622.3 hp at 6000 rpm and 622.8 ft lbs of torque at 4900 rpm.

And yes guys... we know that radiator hose is bent over - dyno is not setup to test TRI-POWER water necks (yes, that is an new aluminum Tri-power water neck that we make that clears the 1969 and up timing cover without the tripower bulge!)

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