These Dart/World Block & Manley Rotating Assemblies for 632 cid Big Block Chevys are Precision Balanced with Manley forged pistons for 15.3-1 compression with 119cc heads and have upgraded ARP2000 rod bolts.
Manley has the BEST rods in the industry.
This is a Serious Competition Kit.
World Products Merlin IV (Pre-Clearanced for 4.750" stroke crank and includes ARP main bolts)
10.200" deck and 4.600" bore
Manley 4340 Forged 4.750" stroke crankshaft,
Fully Counterweighted with Center Counterweights
Manley Forged H-beam Rods w/ARP2000 bolts 6.700 in
Manley Forged Pistons w/43cc dome for 15.3-1 C.R.
Gas Ported, .150" wall pin (.180" wall available)
Ductile Moly rings .043" x .043" x 3/16"
Clevite H series rod & main bearings
Coated cam bearings, freeze plugs, dowel pins