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1982-92 TA & FB TECH 1993-2002 TA & FB Tech is now part of the new Late Model Section of the PY Forums. Click this link to check it out. |
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#1
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Can you help ID this stuff THanks.Motor casting #500557 0483261 26P337117 with 6X heads.
X7 trans 8640399 cast into bellhousing ( auto) CFD all this came out of a 67 GTO!I think it's mid 70's stuff thanks for you help. |
#2
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Can you help ID this stuff THanks.Motor casting #500557 0483261 26P337117 with 6X heads.
X7 trans 8640399 cast into bellhousing ( auto) CFD all this came out of a 67 GTO!I think it's mid 70's stuff thanks for you help. |
#3
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'76 Pontiac 400 from the block casting & serial number. The 6X's should be 6X-8's.
The X7 from '76 is one of the missing codes not in Pete's book...
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Buzzards gotta eat... same as worms. |
#4
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The 557 block is something you should just throw away as the main saddles on those blocks are very thin & Pontiac even stopped using those after a 2 year run because they kept coming back for warr. repair with broken blocks. I wouldn't use that block unless you were doing a 76-77 numbers resto & it would need to be a very low powered engine & you don't run it hard EVER.
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#5
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MYTH.. ![]() ![]() ![]() ![]() They are not good for stroker conversions or high HP builds. For mild to moderate running, they are fine.
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1976 LeMans B09 Freeway Enforcer, 455/M40 Smokey 1977 Trans Am, 400/M21 Black/Gold Bandit. 44K actual miles 2017 Sierra SLT 1500 Z71 4X4 ![]() 2019 Canyon SLT Crew 4X4 ![]() |
#6
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I also believe the 557 blocks were produced from mid 1975-1978 including the 1977 W72. The only non 557 blocks built after 1975 were the 1978-79 W72.
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