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Old 02-11-2004, 11:27 AM

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305 stroker or 350 stroker

hey guys i was looking through chevy high performance today their is a kit for a 305 stroker it kames it a 335 or should i make a 383..i all ready have a 305 in my car now...so it wouldn be that expensive...but anyon done any or these-cragars

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Old 02-11-2004, 11:35 AM
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There's no reason to build a 305 stroker, but you're smart for noticing the idea. If you want that SIZE of motor for some reason, build a 327 or a regular 350, they will perform proportionally better anyway. Between the two (and really there's not enough info here, but just as a general rule) do the 383. It will be faster in every respect than the 305 stroker and 350 blocks are better than 305 blocks to start with. Lastly, the small bore of the 305 block will be terrible for a good flowing head because of valve shrouding. Honestly your best bet for a mild street car is the smallest cam, biggest cube you can run. In that case, a 400sbc is your best bet, or even a 400 stroker like a 427 or 434 (or even a 454 but you'll need an aftermarket block).

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Old 02-11-2004, 11:52 AM
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I say do a 383. My car came with the poopy 305 as well. Depending on your car and the emissions for your state then you would be able to build a nice 383 with a "small" cam and be very happy with it. only difference when putting a 383 or 350 into your car is you will need a new knock sensor if you are using a computer controlled dist. and carb. other than that it will be an easy swap.
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Old 02-11-2004, 01:05 PM
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It depends on what parts you are going to re-use. No doubt the stroked 350 block is the way to go(going through the same dilemma right now).

If you are re-using the heads and not spending any money on machine work on the block (no boring, decking, etc.) and just clearancing the block yourself to clear the crank throws/rods on the stroker that is definitely the cheaper route but not the best one.

Counting the cost of the dedicated 400 flexplate and balancer for the 334 stroker kit it's only a few hundred more than a standard "master rebuild kit" with a reconditioned 305 crank. If you're using 5.7" rods there might be a cam clearance problem which would require an additional cost of a small base circle cam. This could apply to either engine build up.

Powerhouse advertises I think a 95hp improvement over stock with their 334 kit but I am sure it's packing more cam than a daily driver should have and you would have to invest in better heads for sure which would make the 334 pretty much cost what a budget prepared 383 would cost.

I think the other guys are right, the too small bore and long stroke would be weak compared to a well prepared 327(4" bore) or larger engine.

Last edited by Goldduster360; 02-16-2004 at 08:13 AM.
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