Reply to "oil restrictor kit"

garth66"When speed is the only thing that counts"

quote:
Not so fast, sir! Adding oil restrictors to a block with ANY kind of hydraulic lifters will certainly cause annoying rattling noises at low rpms from oil starvation. I installed them along with a hydraulic flat-tappet SVO cam, and one 'expert' told others that my engine had a solid lifter cam in it from the ticking noises at idle. On my flat-tappet cam, the noise is still apparent after 40,000 miles/20 years but seems to have not caused any extra wear. However rollers are known to be sensitive to impacts so I can't say your rollers will last with restrictors, too. You need another opinion or two before adding those setscrews. Or simply play it safe and do NOT add the one at the #5 main that restricts oil to the left-side-only lifters. Good luck!

FWIW, my engine builder said not to use a restrictor kit with a hydraulic roller cam and lifers for the same reasons Jack cites.

1/20/152:41 PM

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