Cheap stroker?
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From: Wherever there's danger..
Cheap stroker?
I've been asked by one of my work buddies to help him build a 460 up a little. He asked me a question I couldn't answer with any certainty so here I am on the forum again. The question is this: Is there a crankshaft on the market that will increase the stroke of a 460 by itself without changing rods? Basically he wants a cheap stroker and doesn't want the added price of rods and machine work. So far he has the entire shortblock ready for assembly. The journals are machined .020 on his block. Any ideas? Looking for a "drop in" crank for some added umph.
Logistics Pro
Joined: Jan 2002
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From: suburban atlanta
Think about the geometry. If the stroke of the crank is longer, then it will pull the piston down into the bore further... and will also push the piston higher into the bore... Uh, if the head is still in the same place, how can this possibly work w/o there being 8 collisions per rev?
I doan theen so.
tom
I doan theen so.
tom
Postmaster
Joined: Nov 2002
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From: Littleton, CO
What does he consider a "cheap" stroker? There is not drop in readily available that usues standard stuff, that I am aware of. To that, most of the kits available still require at a minimum, a balancing to sure up all the parts working together.
--Mike
--Mike
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From: Wherever there's danger..
Thanks everybody. That is exactly the definitive answer I needed. I just couldn't get it right in my head enough to explain it to him. Once again, you guys rock!
SSG G.
SSG G.
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From: Chesterfield, VA
Actually, Ford's 514 Crate motor uses stock 6.605" rods. Their crank uses the standard 2.5" journal, so if you really want to keep stock rods...you have to buy the crank through Ford, and of course it's quite a bit more expensive then the typical $450 SCAT. It's a standard SCAT cast crank, so basically you're just paying more for it because it's sold through Ford.
By the time your buddy has stock rods reconditioned, and installs ARP rod bolts...it would only cost about $150 more for a set of new SCAT H beams that are FAR superior in strength. I'm all for working on a budget, but the new rods seem like money well spent.
By the time your buddy has stock rods reconditioned, and installs ARP rod bolts...it would only cost about $150 more for a set of new SCAT H beams that are FAR superior in strength. I'm all for working on a budget, but the new rods seem like money well spent.
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From: Chesterfield, VA
Originally Posted by tomw
Think about the geometry. If the stroke of the crank is longer, then it will pull the piston down into the bore further... and will also push the piston higher into the bore... Uh, if the head is still in the same place, how can this possibly work w/o there being 8 collisions per rev?
I doan theen so.
tom
I doan theen so.
tom
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Logistics Pro
Joined: Jan 2002
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From: suburban atlanta
Chilly, I understand about reduced height pistons, and lowered wrist pin location, etc. He was asking about (I thought) *just* swapping the crankshaft to get longer stroke.. the cheap way, and I don't see how you can do it, as I stated.
tom
tom
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From: Wherever there's danger..
Thanks again, fellas. My buddy's nose is in the catalogs today lookin for the right kit. I bought mine through e-bay so he's probably going to follow suit...Rods and all.
SSG G.
SSG G.
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