Details
These Lunati/Dart or World 632 cid Block and Balanced Rotating Assemblies for nitrous applications offer race proven quality components at a greatly reduced package price. Fits 18 degree Dart Big Chief and Brodix Big Duke heads. Dart Big M or World steel cap block, forged 4340 crankshaft, H-beam rods with ARP2000 rod bolts, Diamond forged domed nitrous pistons and file fit rings are standard in this popular combination.
- 632 cubic inch
- For 18 degree Dart Big Chief & Brodix Big Duke heads
- 4.600 bore x 4.750 stroke
- Up to 1500 Horsepower
- Dart Big M Block - 10.200 deck clearanced for 4.500 stroke
- World Products Block is already clearanced for 4.750 stroke and has ARP main studs included
- Steel Billet main caps
- 4340 Lunati Forged Crankshaft
- Crankshaft has center counter weights for increased HP, added strength, more precise balance
- 6.700 in Lunati H-beam rods with ARP2000 rod bolts
- Diamond Gas Ported, 6cc Domed, Forged Nitrous Pistons with tool steel H-13 pins .185 wall
- For 2.450 x 1.950 diameter valves
- Comp ratio 14.6-1 with 87cc chamber
- Mahle FirePower hardened ductile moly Nitrous rings .043 x 1/16 x 3/16
- Clevite H series rod & main bearings, coated cam bearings
- Precision Balanced
- Freeze plugs
- Extra cost option: Dart Race Series Block w/raised cam, spread pan rails, 2.125 cam, .904 lifters
- Dart Blocks will need to be clearanced for 4.750 stroke - ADD for Dart Stroke Clearance Machining - $179.00 SEE BELOW
Other Combinations Available - Custom Assemblies our Specialty - Please Inquire
Hundreds of stroke & bore combinations available
Additional Information
| Manufacturer | Lunati |
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