421 stroker
421 stroker For iron block lq4 or lq9
TSP and others have kits.
has anyone had any experience with the 421 kit?
I understand it will cause probably increased heat because of the long stroke.
definitely not good for boost or massive nitrous hits..
For NA revving no hogher than 6500 rpm every now and then ...
would it last ok?
Please share your insight.
TSP and others have kits.
has anyone had any experience with the 421 kit?
I understand it will cause probably increased heat because of the long stroke.
definitely not good for boost or massive nitrous hits..
For NA revving no hogher than 6500 rpm every now and then ...
would it last ok?
Please share your insight.
Last edited by ssdungeon; Jul 30, 2020 at 01:08 PM.
The bore 030 is fine for the iron 6.0 im sure of that.. 7plus years i had that with a 350 shot revving to 7000 rpm sold it runnimg.
The longer stroke is the main question area I think. There mY be other things to consider so if anyone has insight let me know before I pull the trigger.
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I did a 425 ci using a LQ block 4.065x4.100 only because I had the 4.100 crank laying around. I would suggest no more stroke than 4.00 If you still have a choice. The skirt of the piston on a 4.100 stroke hangs out a lot abdc.
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From: Lawrenceburg Ky
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WTF? lol. I hope you went after them. They should of known to check. With that said, I would of made sure they knew they had to check it.
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What shop worth its salt changes the heads AND cam without checking PTV clearance? Seriously, who-the-f!ck does that?
PTV clearance should be checked even if you only change the heads OR the cam... definitely if you change both. Measure for pushrods. Check the rockers contact patch and geometry.
Half-assed nonsense, somebody deserves to stub their toe every day for the rest of their pathetic natural life...
PTV clearance should be checked even if you only change the heads OR the cam... definitely if you change both. Measure for pushrods. Check the rockers contact patch and geometry.
Half-assed nonsense, somebody deserves to stub their toe every day for the rest of their pathetic natural life...
