This Ultimate 632 BBC Block & Rotating Assembly Kit starts with a Dart Big M PRO Block at 10.400 deck with 4.600 bore and upgraded 55mm cam.
The extra .200 deck height allows a much stronger piston with .200 thicker ring lands, awesome for Big NO2.
Howard Billet 4340 Steel Crankshaft w/8 counterweights
XD Xtreme Duty H-beam rods with proprietary ARP2000
Bolts w/asymmetric threads
CP-Carrillo NO2 Pistons, upgraded .240 wall 9310 pins
14.6-1 with .051 head gasket .030 piston to deck
CP Steel Rings .043x.043x3mm
King HP rod & main bearings .001 extra clearance
Balanced internally (Plus Mallory if needed - $75ea)
Dart Big M PRO Block 10.400 deck has
All 4-bolt main billet steel main caps
2500 + HP
Coated HP cam bearings & freeze plug, dowels included
Oil Pan rails are spread .750 for extra crank clearance for better oil windage control.
Accepts 5.000 stoke with extra clearancing
.600 raised cam for extra cam to crank clearance
Upgraded 55mm cam has plenty of clearance.
(can’t do that with std cam location)
Four extra valley head stud bosses prevent head gasket problems with big NO2
True Priority main oiling oils mains first.
Stepped oversize main oil galley for increased oil volume.
Oil crossovers in the valley simplify restricting oil flow to the top end supplying extra oil to main bearings