Description
Overview
Brand:
Manufacturer’s Part Number:
SUM-R243603012
Part Type:
Summit Racing Part Number:
SUM-R243603012
Actual Engine Displacement:
6.1L/370
Rear Main Seal Style:
1-piece
Bore (in.):
4.030 in.
Bore (mm):
102.360mm
Engine Stroke (in.):
3.622 in.
Balanced:
No
Piston Material:
Forged aluminum
Piston Style:
Dish, with two valve reliefs
Harmonic Balancer Included:
No
Flexplate Included:
No
Flywheel Included:
No
Pistons Included:
Yes
Piston Head Volume (cc):
+12.00cc
Wrist Pin Style:
Press-fit or floating
Piston Rings Included:
Yes
Piston Ring Facing Material:
Nitride
Piston and Ring Oversize (in.):
0.030 in.
Piston and Ring Oversize (mm):
0.76mm
Crankshaft Included:
Yes
Crankshaft Material:
Forged 4340 steel
Engine Balance:
Internal
Connecting Rods Included:
Yes
Connecting Rod Length Center to Center (in.):
6.098 in.
Connecting Rod Material:
Forged 4340 steel
Connecting Rod Beam Style:
H-beam
Rod Bearings Included:
Yes
Rod Bearing Undersize (in.):
Stock
Rod Bearing Undersize (mm):
Stock
Main Bearings Included:
Yes
Main Bearing Undersize (in.):
Stock
Main Bearing Undersize (mm):
Stock
Cam Bearings Included:
No
Gaskets Included:
No
Oil Pump Included:
No
Camshaft Included:
No
Lifters Included:
No
Timing Chain and Gears Included:
No
Plastigage Included:
No
Assembly Lubricant Included:
No
Quantity:
Sold as a kit.
Notes:
6-bolt flange and standard snout for factory wetsump engines except 1999-00 thick flange LQ4. Dual 3/16 keyway, Woodruff key not included, re-use factory or use NAL-12561513 rear and add SUM-161000 front for blower balancers. Always clean with mineral spirits and brake-clean oil gallery with 1/4 in. engine brush PIO-4501.
Pro LS 4340 Rotating Assembly, 370 Cid., 4.030 bore, 3.622 stroke, 24X, 6.098 rod, 12cc dish, 9.7:1 @ 65cc, 9.3:1 @ 70cc, File-Fit Rings, H Bearings