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#1
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What are the differences? I never heard this before.
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#2
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its been 30 years since I built one..so my memory isn't real clear-but I think the rear cam journal is larger
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#3
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The Pontiac parts manual list the camshaft number for 61-63 T/4 engines with the same cams...pn 539099 (J) for dual valve springs and pn 537995 (H) for single valve springs. They are interchangeable. Same cams were used in all 3 years.
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#4
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ok-like I said.... 30 years ago-I just remember the something wasn't the same inside the block
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#5
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Trynsave, I forget stuff a lot quicker than 30 years ago ! You may have been thinking about the way Pontiac controlled the compression ratio in the 4cylinders. 61-62 it was controlled by the piston domes and 63 by cylinder head combustion chamber size.
About the only differences I know of. |
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#6
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I have a couple of engines, also a nice build in the process.
Call me if you want to discuss. Calvin Hill Hill Performance 708-250-7420 |
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