Intake Manifold Gaskets Gaskets combine a con-
Valve Cover Gaskets Durable, long-lasting gaskets are offered in severe-duty, ¿EHUIDFHGVWHHOFRUHKLJKGHQVLW\FRUNUXEEHURUODPLQDWHG silicone/cork material. Part No. Application Type Thickness M77VS50755 SB Chevy, 1959-85 Molded Rubber/Steel Carrier .225" M77VS50762 SB Chevy, Dart/Buick Laminated Cork/Composite .250" M77VS50763 SB Chevy, Splayed Valve Heads Steel Core Composite/PTFE .080" M77VS50764 SB Chevy, SB2.2 #12480011 Steel Core Composite/PTFE .080" M77VS50765 SB Chevy, 12°/14° Steel Core Composite/PTFE .080" M77VS50768 SB Chevy, 1986-97 Centerbolt Laminated Cork/Composite .250" M77VS50769 SB Chevy, 1959-85 Laminated Cork/Composite .250" M77VS50771 SB Chevy, 1986-97 Centerbolt Steel Core Composite/PTFE .080" M77VS50756 SB Ford 289-351W Molded Rubber/Steel Carrier .225" M77VS50788 SB Ford 289-351W Steel Core Composite/PTFE .080" M77VS50791 SB Ford 289-351W Laminated Cork/Composite .250" M77VS50792 SB Ford 289-351W Laminated Cork/Composite .125" M77VS50793 SB Ford 289-351W High Temp. Composite .060" Molded Rubber Oil Pan Gaskets Compressible, high-density rubberized ¿EHURUPROGHGUXEEHUVWHHOFDUULHUJDVNHWV eliminate leak paths. Part No. Application Type Thickness M77OS30568RRH SB Chevy, 1980-85, RH Dipstick Molded Rubber N/A M77OS32457 SB Chevy, 1975-79 Thick Ft. Seal, LH Dipstick Molded Rubber/ Steel Carrier .185" M77OS32496B SB Chevy, 1986-97 Thick Ft. Seal, RH Dipstick Molded Rubber/ Rigid Carrier .185" M77OS32522 SB Chevy, 1957-74 Thin Ft. Seal, LH Dipstick Rubberized Fiber .093" M77OS32523 SB Chevy, 1975-79 Thick Ft. Seal, LH Dipstick Rubberized Fiber .093" M77OS32525 SB Chevy, 1986-97 Thick Ft. Seal, RH Dipstick Laminate PTFE/ Steel Carrier .080" M77OS32516 SB Ford 260-302 Rubberized Fiber .093" M77OS32490 SB Ford 351W, 1969-93 Rubberized Fiber .093" M77OS32491 SB Ford, 1962-82 260-302; 1983-95 5.0L Molded Rubber/ Steel Carrier .185" SB Chevy Timing Cover Gasket NEW! M77T27781VC &RPSRVLWHJDVNHW¿WVDOOVPDOOEORFN&KHY\
IRUPDEOH¿EHUPDWHULDOZLWK a double-perforated steel core and silicone-beaded sealed ports to help main- tain an effective seal, even under high-vacuum conditions or exposure to fuel and oil. Part No. Application Port Size Thickness M77MS20009 SB Chevy, Tapered Port 2.100" Dia. .060" M77MS20010 SB Chevy, Stock Port 1.20" x 2.01" .060" M77MS20012 SB Chevy, Rect. Port 1.26" x 2.18" .060" M77MS20013 SB Chevy, Pro Action/RHS 14° 1.36" x 2.19" .060" M77MS20014 SB Chevy, 23° Medium Port 1.25" x 2.20" .060" M77MS20015 SB Chevy, Dart Little Chief 1.44" x 2.29" .060" M77MS20016 SB Chevy, Brodix WP287/12X/12RP 1.41" x 2.50" .060" M77MS20017 SB Chevy, 23° Large Port 1.30" x 2.25" .060" M77MS20018 SB Chevy, Rect. Port 1.25" x 2.20" .120" M77MS20019 SB Chevy, 23° X-Large Port 1.38" x 2.30" .060" M77MS20022 1.38" x 2.30" .120" 1.60" x 2.90" .060" M77MS20024 SB Chevy, GM Perf. Splayed, Trim to Fit 1.50" x 2.00" .060" M77MS20025 SB Chevy, SB2.2, Trim to Fit 1.39" x 1.90" .060" M77MS20039 BB Chevy, Stock Oval Port 1.80” x 2.03” .060” M77MS20056 GM LS1/LS2/LS6, Rect. Ports 1.15" x 3.37" .030" M77MS20057 GM LS1/LS2/LS6, Rect. Ports 1.15" x 3.37" .060" M77MS20058 GM LS1/LS2/LS6, Rect. Ports 1.15" x 3.37" .120" SB Chevy, 23° X-Lg. Race/Brodix 12SP-S SB Chevy, Dart/Buick M77MS20023 M77MS20059 GM LS7/C5R/World LS7X, Rect. Ports 1.37" x 2.41" .030" M77MS20060 GM LS7/C5R/World LS7X, Rect. Ports 1.37" x 2.41" .060" M77MS20061 GM LS7/C5R/World LS7X, Rect. Ports 1.37" x 2.41" .120" M77MS20064 GM LS L92, Rect. Ports 1.25" x 2.50" .030" M77MS20065 GM LS L92, Rect. Ports 1.25" x 2.50" .060" M77MS20066 GM LS L92, Rect. Ports 1.25" x 2.50" .120" M77MS20069 SB Ford 260-351W 1.10" x 2.00" .060" M77MS20070 SB Ford 260-351W, GT40/N351/Sports. 1.31" x 2.15" .060" M77MS20071 SB Ford, Trick Flow "R" Series 1.37" x 2.30" .060" M77MS20072 SB Ford 260-351W, SVO Yates C3 1.85" x 2.22" .060" M77MS20073 SB Ford 260-351W, SVO Yates C3/C302 1.47" x 2.31" .060" Valley Cover Gaskets M77MS20020 SB Chevy, Pro Action/RHS 14° N/A .060" M77MS20021 SB Chevy, GM Performance SB2.2 N/A .060"
Power Pak Domed Piston Kits
Forged, domed pistons with radiused valve pockets are machined for 1.5mm top, 1.5mm second, and 3.0mm oil rings. Sets of eight include wrist pins, locks, and performance piston rings.
GM “604” Crate Engine Pistons Forged 4032 alloy pistons deliver improved durability compared to the OEM cast pistons found in GM “604”
Rod Length
Comp. Height
Dome Volume
Comp. Ratio
Part No.
Bore
Stroke
crate engines. Identical in design WRWKH2(0XQLWVÀDWWRSSLVWRQV accept stock-sized 1.5mm and 2mm compression rings, and 4mm oil rings. Approved by a wide variety of sanctioning bodies. Sets of eight with SUHVV¿WZULVWSLQV
Small Block Chevy MAH930207930 4.030" 3.48"/3.50" 6.000" 1.250" 11cc 13.0:1 MAH930208130 4.030" 3.48"/3.50" 6.125" 1.125" 11cc 13.0:1 MAH930207940 4.040" 3.48"/3.50" 6.000" 1.250" 11.1cc 12.9:1 MAH930208340 4.040" 3.48"/3.50" 6.125" 1.125" 6.0cc 12.0:1 MAH930207960 4.060" 3.48"/3.50" 6.000" 1.250" 11cc 13.0:1 MAH930212525 4.125" 3.750" 6.000" 1.125" 4cc 13.0:1 MAH930212555 4.155" 3.750" 6.000" 1.125" 4cc 13.0:1 MAH930208855 4.155" 4.000" 6.000" 1.000" 4cc 13.9:1 MAH930212565 4.165" 3.48"/3.50" 6.125" 1.125" 4cc 12.3:1 MAH197754565* 4.165" 3.500" 6.125" 1.125" 9.0cc 13.2:1 MAH930208265 4.165" 3.750" 6.000" 1.125" 11cc 14.3:1 Notes: In addition to the rod and stroke combinations listed with each part number, other rod/stroke combinations may work. Compression ratios are based on a 64cc combustion chamber. *Pistons are machined for and sold with 1.0mm top, 1.0mm second, and 2.0mm oil rings.
Rod Length
Comp. Height
Dome Volume
Comp. Ratio
Part No.
Bore Stroke
Small Block Chevy MAH930127805 4.005" 3.480" 5.700" 1.559" -4.9cc 9.93:1 MAH930127820 4.020" 3.480" 5.700" 1.559" -4.9cc 9.93:1 MAH930127830 4.030" 3.480" 5.700" 1.559" -4.9cc 9.93:1 Note: Small block Chevy compression ratios are based on a 64cc combustion chamber.
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CIRCLE TRACK 2021-22
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