408 Cam on the way
I repeated the measurements. Repeatability varied by 0.5 degree so I took 4 and averaged.
Intake centerline 103.
Exhaust 113.
That puts my lsa right on the expected 108.
Next issue, I have KB-416 step dish pistons, with the raised step at 0.020" above deck. Hughes website says if they are above deck, use a thicker gasket.
This seems quite a lot above deck to me. I set a head on lightly snugged with 4 bolts and the piston contacts at about 7 degrees before TDC.
I also need to verify which part of the piston to measure from for compression calculation. I think it's the rim above the dish and below the step up area but hoping someone can clarify.
I repeated the measurements. Repeatability varied by 0.5 degree so I took 4 and averaged.
Intake centerline 103.
Exhaust 113.
That puts my lsa right on the expected 108.
Next issue, I have KB-416 step dish pistons, with the raised step at 0.020" above deck. Hughes website says if they are above deck, use a thicker gasket.
This seems quite a lot above deck to me. I set a head on lightly snugged with 4 bolts and the piston contacts at about 7 degrees before TDC.
I also need to verify which part of the piston to measure from for compression calculation. I think it's the rim above the dish and below the step up area but hoping someone can clarify.