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New Edge Cobras
Curious about crankshaft how are made and getting strokers.
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<blockquote data-quote="01yellercobra" data-source="post: 16917404" data-attributes="member: 35549"><p>That was kind of a tough read. But I think I know what you're asking. </p><p></p><p>The stock crank has a 3.55" stroke. In the early days companies would offset grind the rod journal to increase the stroke. That's how the one I have was done. It's a 3.75" stroke. But it requires a different set of rods. In my case it's a Chevy small block rod with a 2" journal. They all require different rods as the rod length changes from stock. But that's what I ended up with. </p><p></p><p>Nowadays the cranks are cast or forged to the needed stroke. So something like a Manley crank is forged to the 3.80" stroke. </p><p></p><p>You're not going to find a stock mod motor with a 3.66" bore. Not without sleeves at least. The big bore blocks are 3.75". The same goes for the crank. Unless you get something custom, but that's $$$$.</p><p></p><p>There are a couple ways to get a 302. You can run a stroker crank in a stock block and get there. Or find a big bore block and run a stock stroke crank. </p><p></p><p>My personal preference is a big bore block with a stroker crank for 323-326 cubic inches.</p></blockquote><p></p>
[QUOTE="01yellercobra, post: 16917404, member: 35549"] That was kind of a tough read. But I think I know what you're asking. The stock crank has a 3.55" stroke. In the early days companies would offset grind the rod journal to increase the stroke. That's how the one I have was done. It's a 3.75" stroke. But it requires a different set of rods. In my case it's a Chevy small block rod with a 2" journal. They all require different rods as the rod length changes from stock. But that's what I ended up with. Nowadays the cranks are cast or forged to the needed stroke. So something like a Manley crank is forged to the 3.80" stroke. You're not going to find a stock mod motor with a 3.66" bore. Not without sleeves at least. The big bore blocks are 3.75". The same goes for the crank. Unless you get something custom, but that's $$$$. There are a couple ways to get a 302. You can run a stroker crank in a stock block and get there. Or find a big bore block and run a stock stroke crank. My personal preference is a big bore block with a stroker crank for 323-326 cubic inches. [/QUOTE]
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Curious about crankshaft how are made and getting strokers.
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