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Old 02-28-2021, 09:55 PM
JLMounce JLMounce is offline
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I’m no LS expert but my understanding is that they don’t really start to look at lifter upgrades until things start getting pretty wild.

The sloppy stage 2 type cams usually get something like a pac1219 installed with them. Pretty basic 5.3 or 6.0 cam swap there and they run about 150-160 on the seat and about 350 open.

Those are pressures that are fairly similar to the hyd roller stuff being run in Pontiac engines, and the LS stuff doesn’t seem to have a high failure rate on their parts at this level.

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1969 Pontiac Firebird
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