Thread: '72 429 rebuild

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You can build a decent street motor that will operate on 87 octane pump gas swill and make good power for not much money.

Bore the block 0.030" and use these pistons...
http://store.summitracing.com/partde...0&autoview=sku

Find a set of D3VE heads, do a 5-angle valve job and install CompCams #924 springs. Bolt the heads on with this gasket....
http://store.summitracing.com/partde...9&autoview=sku

Static compression ratio will be 9.0:1, squish will be 0.058".

Bolt on an Edelbrock Performer RPM or RPM Air Gap intake mounting an 850 CFM vacuum secondaries carb. Weiand Stealth or Stealth Air Strike will also work.

Bolt on a good set of large-tube, equal-length headers (full long tubes, not shorties).

CompCams X4278H hydraulic flat-tappet cam. 278/288, 234/244, 0.574"/0.580", 107/115/111.

RPM HP TQ
1500 111 390
2000 170 446
2500 214 450
3000 270 472
3500 330 496
4000 377 495
4500 406 474
5000 404 425
5500 341 325

I might be thinkin' a 3.50 to 3.70 rear gear and a converter that stalls at 2000-2200 rpm's. Comp says 2500+, but with the torque this motor makes down low, I think I'd pull back a little on the converter.