What to look for in new engine??? - Team Camaro Tech
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post #1 of 4 (permalink) Old Apr 14th, 04, 03:43 AM Thread Starter
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I just brought home my new 68 Camaro this past weekend and now I have to decipher what I bought. It has the original 327 in it, but has had a performance rebuild. Supossedly it is bored and stroked, to what I have no idea. is ther anyway to tell from external parts like harmonic balancer or flexplate? Also the heads are the 462 castings with roller rockers and guidplates and much bigger valves as per the work order, but no specifics on size. Obviously it must have new pistons if they bored the block. But I am new to the stroker motor thing and am not sure what goes into a stoker as far as rods and a crank. I think he said it has a 400 crank. Anyway to tell?

Thanks, Erik

67 Camaro Pro Street, 540 Bill Mitchell Merlin big block, Merlin Aluminum heads, Holley 870, hydraulic camshaft, 2" Hooker Super Comp headers, Mallory and Crane ignition system, TH400, 2600 stahl, Ford 9" w/ 4:10 gears and posi.
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post #2 of 4 (permalink) Old Apr 14th, 04, 04:39 AM
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if they put in a 400 crank, and they bored it .030'' over, you've got yourself a 383. Will probably use an 8'' harmonic balancer (as opposed to the smaller balancer) and should have a counterweighted flexplate/flywheel. This kind of stoker is generally externally balanced... but some can be internally balanced in which case I'm not sure how you would tell without measuring the stroke.

alternatively, they might have just put in a 3.48'' crank from a 350, making your overbored 327 into a 355. Wouldn't be able to tell from any external features that I can think of off the top of my head.

Those are the two most likely options I'd guess.

John

- '68 Chevy Camaro (sort of done, but always subject to improvement)
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post #3 of 4 (permalink) Old Apr 14th, 04, 08:46 AM
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If you could see the back flange on the crank, that might give a clue but that can be difficult without some dissasembly. Even then, it is only a clue, not decisive.

-Mark.
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post #4 of 4 (permalink) Old Apr 14th, 04, 10:37 AM
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I would think if it is a stroker using a 400 CID SBC crankshaft, then a counterweighted harmonic balancer would be in place.
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