Details
PUMP GAS THUNDER Short Block Kits with Block & Rotating assemblies are designed for 93 octane fuel but still make tremendous horsepower. Perfect for Street Racers, Rods, Muscle Cars and any Hi-Performance Street Car.
These World Block and Balanced Rotating Assemblies offer race proven quality components at a greatly reduced package price. World Products Merlin IV sportsman blocks, forged 4340 crankshafts, H-beam rods with ARP8740 bolts, forged pistons and file fit rings are standard in these popular combinations. Blocks are clearanced for 4.375 stroke.
Precision Balanced
- 565 cubic inch
- 4.600 bore x 4.250 stroke
- World Products Merlin IV Sportsman Block - 9.800 deck
- World Products Block has ARP main bolts included
- LPC 4340 Forged Crankshaft
- LPC 6.385 in H-beam rods w/ARP8740 bolts
- ARP8740 bolts = 850 max HP
- Optional ARP2000 bolts = 1200 max HP
- Wiseco RED Series +15cc dome piston = 10.8-1
- Other compression ratios available
- File Fit ductile moly rings 1/16 x 1/16 x 3/16
- King TriAcular rod & main bearings
- Precision Balanced
- Hi-Performance Cam bearings, Freeze plugs & dowels
For ARP2000 Rod Bolt upgrade - Add $99 click here
Other Combinations Available - Custom Assemblies our Specialty - Please Inquire
Hundreds of stroke & bore combinations available
Additional Information
| Manufacturer | World Products |
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