LT1 rocker cover onto LB9

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Sep 4, 2004 | 11:26 AM

Goumba T

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Joined: Jul 2003

Posts: 604

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From: Howard Beach, NYC

Car: 1990 TA

Engine: LB9 305

Transmission: 4L60

LT1 rocker cover onto LB9

I just came across a set of LT1 rocker covers for cheap, figure I'd replace the beat up rocker covers I have now. Only thing is, the passenger side cover doesn't have a hole for the valve. What size hole do I need to cut for the passenger side PCV-looking valve, and what is the best tool to use to cut the hole?

Sep 7, 2004 | 02:31 PM

bnoon

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Joined: Jan 2003

Posts: 1,304

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From: West Des Moines, IA

Car: 2008.5 Mazdaspeed 3 GT

Engine: 2.3 DISI Turbo

Transmission: 6 speed MT

Hole saw made for metal is the best. You'll also have to fabricate an oil baffle though so that the engine isn't sucking oil off of your rockers, so keep that in mind. Probably could tack weld your stock baffle in place if you wanted to...