ATK Performance 347 Stroker Shortblock, all forged internals
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SKU: ATK-SP20
Part# SP20
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ATK Performance 347 Stroker Shortblock, all forged internals
This shortblock is a great starting point for a naturally aspirated or boosted race engine capable of 500+hp, more with a main girdle. Assembled and ready to bolt on your heads, cam, intake etc. Here's the specs.- Block: Seasoned OE Roller Block
- Bore/Stroke: 4.040 x 3.400
- Displacement: 347 C.I.D.
- Crankshaft: SCAT 4340 Forged 3.400" Stroke 1 Piece Seal Externally Balanced 28oz.
- Connecting Rods: Scat 4340 Forged H Beam 5.400 w/ARP 8740 Bolts
- Pistons: Forged +5cc Flat Top w/4 Valve Reliefs
- Piston Rings: Moly Rings
- Compression Ratio: 58cc=10:4/64cc=10:1
- Camshaft Bearings: Installed and Clocked to OEM Position
- Freeze Plugs: Brass Installed and Sealed
- Oil Galley Plugs: Installed and Sealed
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