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Old 04-14-2013, 07:56 AM
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engine id

I have a casting # of T06I7HCH was curious if any one new if this a 4bolt main motor and also if this motor would have a steel crank ? suppose to be a 400 truck engine Thanks

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Old 04-14-2013, 08:27 AM
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There are no OEM 400's build with a steel crank.The casting number you need is on the back of the engine.
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Old 04-14-2013, 09:54 AM
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Old 04-15-2013, 12:33 PM
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What you have posted is called a suffix number, not a casting number. The suffix number is on the passenger side block deck at the very front of the block. The casting number is on the top ledge at the back of the block just before the bellhousing mounting face. The cylinder head casting numbers are on the heads, between the valve guides, under the valve covers. The suffix number you have posted shows to be a 1966 327, 275 hp, 4-bbl, Powerglide. Post the block and heads casting numbers for us please.
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Old 04-15-2013, 11:37 PM
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Quote:
Originally Posted by garystorey View Post
I have a casting # of T06I7HCH was curious if any one new if this a 4bolt main motor and also if this motor would have a steel crank ? suppose to be a 400 truck engine Thanks
The casting numbers and suffix code (HCH in your case), etc. cannot tell you for sure if the crank is steel or if the block is a 2- or 4-bolt. HCH comes back as a 1966 327. If this is the case, the engine has a small journal steel crank; steel cranks were used in SBC engines up until about 1968.

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