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New, "in-the-box", GM, turbo crankshaft. The "real deal" with rolled fillet journals. GM part #12350247. This was purchased direct from GM in the early 90's for use in an engine build that never occured. Comes in original box with wrapping and instruction-sheet. It has already been de-burred...

Anyone know who is currently selling 3" catalytic converter "bypass pipes" (aka test pipes)? I need one with the factory style, 4-bolt flange. Thanks, Mike

Looking for a '291' 4.1 block. Block only, no internals. Stock or overbore okay.

RJC 4.1 block girdle with machined caps (two center steel), studs, shims and pickup extension. This is a 14-bolt girdle that was installed on a stock '80 block. Separate prices, including machining, totaled over $850.00. Asking $500.00 or best offer. Contact Mike at 708-804-7316 or email for...