08-20-2013, 07:54 AM
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CC Member
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Join Date: Feb 2001
Location: BRADENTON,
FL
Cobra Make, Engine: KIRKHAM 427 S/C, SHELBY 427 ALUM. STROKER
Posts: 1,396
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Not Ranked
Problems after break-in
Shelby alum block, 428 crank, Edelbrock heads, Shelby roller tip rockers.
After 500 mi break-in, This engine has developed some problems which may or may not be related:
1. Left bank plugs wet with oil, oil smoke out the left side pipe.
(running no restrictors to rockers), rt side ok.
2. rear main seal leaking .
3. Running webers, only vent is rear of intake manifold, none on valve covers.
I.m thinking I'm getting too much oil up in the heads.
Thoughts ?
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