From what I can tell, the 4.25 kits are a little more prevalent and cost about $500 less than the 4.00 kits. Not a huge amount in the scheme of what this will likely cost on the whole, but worth thinking through the benefits/drawbacks since I'm starting from scratch.
I chatted with a local Pontiac builder yesterday about what I want from the engine. He walked me back from a stroker at the start of the convo but by the end of it he was thinking the torque of a 4.25 stroker would be a good match for what I use the car for, which is mostly around town lower RPM driving and hot rodding here and there.
That said, I got a big box of parts from KRE today including the $450 cam I was waiting 3 months for - that will be too small for a 472. I suspect I'd want a different cam for a 4" stroker too? Save $500 by getting a 4.25 stroker kit, spend $500 on a new cam that works with the bigger cubes. The most economical path here is building a 400 again, but what fun is that?
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Ken
'68 GTO - Ram Air II 464 - 236/242 roller - 9.5” TSP converter - 3.55 posi ( build thread | walk around)
'95 Comp T/A #6 M6 - bone stock ( pics)
Last edited by Verdoro 68; 01-19-2022 at 06:39 PM.
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