Official Release:
Summit Racing™ SPC Engine Blocks
Summit Racing™ SPC Pro LS Blocks are aftermarket Engine Blocks made for “Street, Performance, or Competition.” These brand new aftermarket blocks are a hybrid combining features from both Gen III and IV models. They are cast in a modern state-of-the-art German foundry on brand new molds and machined in USA on modern high-speed machining centers. We ship these blocks mostly finished but leave the cylinder bore .005″ undersize, your machine shop will have to hone them for proper size. This block is a great foundation for your engine build.
Features:
• Cast in Germany at a Tier 1 OEM foundry
• Made with class 35 Iron Alloy, Higher tensile strength and harder than competitors’ class 30
• Machine-finished in USA on precision hi-speed machining centers- All dimensions are held to very close blueprint tolerances
• 468 Cu in. Capacity, 4.185 in. Max bore, 4.250 in. Max stroke
• Ventilated, 6-bolt Billet Steel main caps, 180,00 PSI main bolts included
• Standard 9.240 in. deck height and optional 9.705 in. Tall deck available
• Siamese Cylinder Walls skirts extended .250 in. or .700 on tall deck version
• Standard 4 or Optional 6 bolt per cylinder head bolt patterns
• 4.065 in. or 4.125 in. Bores finished to -.005 in. undersize, Machine Shop Hone to fit
• Cast in stroker clearance for 4.00″ steel rods Can Fit 4.250 in w/extra clearancing
• Priority main oiling system with center crossover eliminates cam retainer leaks
• Requires Specific cam retainer plate, Gen IV Cam Bearings, Head Bolts, Valley Cover, and Cam Position Sensor
