Discussion Starter · #1 ·
Has anyone ever done a back to back test with the Crane Hi-Intenstiy lifters and regular hydraulic lifters? The engine is a 350 with 8.3 compression, 882 heads, Chevy Z28 intake, 600 Holley, 2 1/2 exhaust with turbo mufflers. Car is a 69 Chevelle with a 3.08 gear and Powerglide with a stock converter. The camshaft is a 214-224-112 Summit. This is not a bad combination but the cam is about 10 degrees to big for the compression. I was thinking of trying the bleed down lifters to restore some torque in the 1500-2500 rpm range. I tried the Rhoades lifters years ago and was not impressed at all. Too noisy and did not seem to have the higher RPM power I expected. They are out of the question. Has anyone ever taken the regular hydraulic lifters out and installed the Crane with no other changes? How much did the vacuum improve at idle? Did the gas mileage improve? How much cam "sound" did you lose? How much did the lifter noise increase? How much did the throttle response improve and did the power at the higher RPM's hold on as well as with the regular lifters? Thanks for any answers in advance.