145 ENGINES & COMPONENTS Order today! SummitRacing.com | 1-800-230-3030 FREE standard shipping on qualifying orders! See page 3 for details and exceptions. Small Block Chevy Comb. Chamber Int./Exh. Runner Int./Exh. Valve Max Lift Cam App. Price Each SUM-162SBCSTRFT* 65cc 195cc/76cc 2.02"/1.60" .600" HF $629.99 SUM-162SBCANGFT^ 65cc 195cc/76cc 2.02"/1.60" .600" HF $624.99 SUM-162SBCSTRHR* 65cc 195cc/76cc 2.02"/1.60" .600" HR $639.99 SUM-162SBCANGHR^ 65cc 195cc/76cc 2.02"/1.60" .600" HR $624.99 Big Block Chevy SUM-162BBCREC335 122cc 335cc/140cc 2.25"/1.88" .725" HR $899.99 Cathedral Port GM LS SUM-LS210CATH60 60cc 210cc/82cc 2.00"/1.60" .650" HR $699.99 SUM-LS210CATH64 64cc 210cc/82cc 2.00"/1.60" .650" HR $709.99 SUM-162LS210CATH 64cc 210cc/82cc 2.02"/1.60" .650" HR $699.99 Rectangle Port GM LS SUM-162LS3255REC 67cc 255cc/82cc 2.165"/1.60" .650" HR $764.99 Small Block Ford SUM-162SBF185WIN 64cc 185cc/64cc 2.02"/1.60" .600" HR $689.99 Mopar Gen III Hemi NOTE: D at the end of the part number denotes driver side head, P denotes passenger side head. 5.7/6.1L SUM-HEMI1855761D 69cc 185cc/64cc 2.05"/1.59" .600" HR $1,539.99 SUM-HEMI1855761P 69cc 185cc/64cc 2.05"/1.59" .600" HR $1,539.99 SUM-HEMI2125761D+ 69cc 212cc/64cc 2.125"/1.65" .600" HR $1,999.99 SUM-HEMI2125761P+ 69cc 212cc/64cc 2.125"/1.65" .600" HR $1,999.99 6.2/6.4L SUM-HEMI2126264D+ 73cc 212cc/64cc 2.125"/1.65" .600" HR $1,999.99 SUM-HEMI2126264P+ 73cc 212cc/64cc 2.125"/1.65" .600" HR $1,999.99 *With straight spark plugs. ^With angled spark plugs. +CNC-machined intake and exhaust ports. Summit Racing™ Aluminum Cylinder Heads for Small Chevy Get affordable performance cylinder heads with race-ready quality! Cast from A356 aluminum alloy and T6 heat treated for strength, Summit aluminum small Chevy heads feature D-port exhaust runners and are fully assembled with valve springs, stainless steel 2.02" back-cut intake/1.60" exhaust valves, hardened valve seats, 7° valve locks and chromoly retainers, bronze alloy valve guides, 5/16" guideplates, and 3/8" ARP screw-in studs. Made in the USA. SUM-162112+ 200cc intake runners, 64cc combustion chambers, 1.430" valve springs ...............................................pair $1,329.99 SUM-162111^ 200cc intake runners, 64cc combustion chambers, 1.470" valve springs ...............................................pair $1,329.99 An oversize fee may apply. Details at SummitRacing.com. ^For use with mechanical flat tappet and hydraulic roller cams (up to .575" lift). +For use with hydraulic flat tappet cams (up to .525" lift). Small Block Chevy These cylinder heads are made for high performance engines with a displacement of 350 to 400 cu. in. operating up to 6,000 rpm. They come with 3/8" rocker studs, 5/16" guide plates, and are available with springs suitable for both hydraulic flat tappet and roller cams as indicated. Big Block Chevy Our Summit BB heads are an excellent choice for 455 to 540 cu. in. performance engines with a max operating range of 6,500-6,700 rpm. They include 7/16" rocker studs and 3/8" guide plates, plus recessed valve locks for use with lash caps. Require a minimum bore diameter of 4.250". Cathedral Port GM LS Our budget-friendly LS heads deliver approximately 15% more airflow than other popular 234 castings. Heads with 2.02" intake valves require a bore of 3.900" or larger. Heads with 2.00" intake valves are designed for engines with a 3.78" bore. Rectangle Port GM LS Rectangle port cylinder heads are designed specifically for LS3 engines, delivering improved airflow and horse power. For use on engines with 4.00" or larger bore. Small Block Ford Our Windsor heads provide approximately 40% more airflow compared to stock E7 heads, significantly enhancing performance for your 302 to 363 cu. in. engine up to 6,500 rpm. The heads are equipped with both standard and wide exhaust patterns, 3/8" rocker studs, 5/16" guide plates, and 1/2" to 7/16" head bolt bushings. Mopar Gen III Hemi Our Gen III Hemi cylinder heads are equipped with CNC-machined combustion chambers, as well as intake and exhaust runners (as noted). They feature improved water jacketing for better cooling efficiency, plus a .750" thick head deck to withstand the power of modern NA and boosted engines. Summit Racing™ Precision Cast Cylinder Heads Summit Racing Precision Cast cylinder heads are manufactured with permanent-mold “as-cast” technology (unless noted) for superior port accuracy and design! They’re made from A356 aluminum and feature precision CNC-finished faces and bolt holes for a perfect fit. The heads include manganese bronze valve guides and interlocking ductile iron seats with a competition-grade valve job, plus top-quality components like PAC Racing springs, ARP rocker studs (where applicable), one-piece 21 4N stainless valves, machined locks, Viton® seals, and chromoly retainers. Camshaft applications: HF=hydraulic flat tappet, HR=hydraulic roller. Gen III Hemi with CNC-machined combustion chambers Scan here for complete details! Summit Racing™ Cast Iron Small Chevy Cylinder Heads Don’t scour boneyards looking for small Chevy cast iron heads—our all-new heads outflow and outperform the originals! They’re made from superior-quality iron alloy and come ready-to-run with wide-open intake runners, 1.25" valve springs (good to .490" lift unless indicated), screw-in studs, retainers, and locks. NOTE: Vortec heads require centerbolt valve covers and a Vortec-style manifold. Price Each SUM-152123 72cc chambers, 2.02" intake/1.60" exhaust valves, 165cc runners, .490" lift ................................................... $649.99 SUM-151124 Vortec, 67cc chambers, 1.94" intake/1.50" exhaust valves, 175cc runners, .490" lift ................................................... $649.99 SUM-151120 Vortec, 64cc chambers, 1.94" intake/1.50" exhaust valves, 171cc runners, .525" lift ................................................... $549.99
