Got my parts today and put together the front cover and balancer and .010 bearings. Looked for light and then ran some grease around the seal and checked the balancer to see where it was contacting. I couldn't see any indication that it wouldn't seal, but it's pretty tight in there. A smoke test seems like a good idea when the time comes.
I chatted with a tech from Butler this afternoon. They echoed formulabruce - make sure the block is good. Butler's rotating assemblies sound like the way to go since they're balanced and blueprinted. One thing I didn't consider was how upping the cubes would mess with the compression ratio. The Ram Air II heads on a 461 would need a ~30cc dish in the piston to keep the compression around 9.4/9.5:1. Seems like a lot of dish.
Surprisingly, he recommended practically the same cam as what I got from Kauffmann for a 400. (276/282 224/230, .503/.510, 114 vs. 278/289 224/230 112 .502/.510). He said the RAII heads with a stroker would be good for around 425hp but would have great low end torque. I was expecting a higher HP number, seems like I could get that number out of the current displacement easy.
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Ken
'68 GTO - 464 - Ram Air II heads - 236/242 roller - 9.5” TSP converter - Moser 3.55 Truetrac ( build thread | walk around)
'74 Ventura 350
'69 AMC Javelin SST
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