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#11
01-29-2012, 10:44 PM
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Re: 1972 Replacement LS6
OK, for those interested I got the engine home today and popped the heads off. Sure enough, a open chamber head on one side and a closed chamber on the other. The heads are pretty closely dated for a marine engine and it may have been a factory goof. I'm not sure. Funny thing is, the boat was supposed to run well.
Jason     
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#12
01-29-2012, 10:44 PM
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Re: 1972 Replacement LS6
   
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#13
01-29-2012, 10:45 PM
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Re: 1972 Replacement LS6
    
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#14
01-30-2012, 12:25 AM
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Re: 1972 Replacement LS6
I would think the difference in compression would cause a vibration or off-balance?
What letter is stamped on the rockers? What cam is in it?
__________________
1968 Z/28 34,000 mile, born with engine and trans, Shipper, California car, Fathom Blue, deluxe interior, M21, 3.55 Posi 1962 Oldsmobile Jetfire, Factory all Aluminum V8 Turbocharged and Methanol Injected TURBO ROCKET engine, 4 speed Hydramatic, 4 link rear suspension, 3.36 Anti-Spin differential, California car, PS, PB, PW, AC, Jetfire 2 option package.
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#15
01-30-2012, 01:47 AM
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Re: 1972 Replacement LS6
I have not checked the cam. The rockers are "H".
Jason
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#16
01-30-2012, 02:43 AM
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Re: 1972 Replacement LS6
I would have thought they would be "L" or "M" long slot. "H" is the ZL-1 and L-88 extra long slot. Good Rockers. I wonder if it has the 3863143 cam or the 3904362 cam.
__________________
1968 Z/28 34,000 mile, born with engine and trans, Shipper, California car, Fathom Blue, deluxe interior, M21, 3.55 Posi 1962 Oldsmobile Jetfire, Factory all Aluminum V8 Turbocharged and Methanol Injected TURBO ROCKET engine, 4 speed Hydramatic, 4 link rear suspension, 3.36 Anti-Spin differential, California car, PS, PB, PW, AC, Jetfire 2 option package.
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#17
01-30-2012, 03:58 AM
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Re: 1972 Replacement LS6
If I tear it down far enough to see in cam numbers I will let you know.
Jason
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