* To purchase individually substitute -1 for the -8 suffix in part number.
Severe-Duty Valves Severe-duty exhaust valves are made of XH-428 stainless steel which has double the tensile strength of imported valves at 1,500°F. Intake valves, constructed of NK-844 stainless steel, have over 1000 times greater fatigue strength than imported valves. Sold in sets of 8. Part No. Type Size Stem Installed Height Small Block Chevrolet 262-400 MAN11567-8* Exhaust 1.500" .3415" Stock MAN11543-8* Exhaust 1.600" .3415" Stock MAN11595-8 † Exhaust 1.600" .3415" Stock Manley’s Race Master valves have straight, fully chromed stems and hardened tips. Valves are thoroughly machined and swirl-polished. Intake valves are made of NK-842 stainless steel and exhaust valves are XH-426 stainless steel. Sold in sets of eight (unless noted).* Part No. Type Size Stem Installed Height Small Block Chevrolet 262-400 MAN11861-8 Exhaust 1.500" .3415" Stock MAN11863-8 Exhaust 1.600" .3415" Stock MAN11877-8 Exhaust 1.600" .3415" .100" Longer MAN11860-8 Intake 1.940" .3415" Stock MAN11864-8 Intake 2.020" .3415" Stock MAN11318-8 Intake 2.020" .3415" .100" Longer MAN11806-8 Intake 2.055" .3415" Stock MAN11810-8 Intake 2.055" .3415" .100" Longer MAN11808-8 Intake 2.080" .3415" Stock MAN11812-8 Intake 2.080" .3415" .100" Longer Race Flo Valves Race Flo valves have been necked down in the port area to i >ViyÜ° Ý >ÕÃÌÛ>ÛiÃ>Ài8{ÓÈÃÌ>iÃÃÃÌiiÜ i intake valves are NK-842 stainless steel. Valve stems are fully chromed with hardened tips. Valves are swirl-polished and fully machined. Sold in sets of eight.* Part No. Type Size Stem Installed Height Small Block Chevrolet 262-400 MAN11521-8 Exhaust 1.500" .3415" Stock MAN11501-8 Exhaust 1.560" .3415" Stock MAN11565-8 Exhaust 1.600" .3415" Stock MAN11545-8 Exhaust 1.600" .3415" .100" Longer MAN11522-8 Intake 1.940" .3415" Stock MAN11500-8 Intake 2.000" .3415" Stock MAN11566-8 Intake 2.020" .3415" Stock MAN11568-8 Intake 2.055" .3415" Stock MAN11546-8 Intake 2.055" .3415" .100" Longer MAN11560-8 Intake 2.080" .3415" .100" Longer Race Master Valves
Severe-Duty “Pro-Flo” Valves Have many features of the Race-Flo line, but are made of severe-duty material. Exhaust valves are made from XH-428 stainless steel and intake valves are made from NK-844 stainless steel. Valve stems are fully chromed with hardened tips. “Pro-Flo” design of- viÀÃ>VÀi>ÃiyÜÕ«Ì{ä¯ÛiÀÌ iÀ««Õ>À designs. Valves are swirl-polished and fully machined. Sold in sets of eight.* Part No. Type Size Stem Installed Height Small Block Chevrolet 262-400 MAN11823-8 Exhaust 1.600" .3415" .100" Longer MAN11824-8 Intake 2.055" .3415" .100" Longer Valve Locks Heat-treated, black oxide-coated steel locks >Ài>Û>>LiiÝÌÀ>Ì V]-Õ«iÀÇcÀÌÀ>` - tional 10° for conventional or bead lock valves. Sets of 8 (16 «iViîÀ£ÈÎÓ«iViî° Part No. Description Installed Height Lock Style Super 7° MAN13080-16 5/16" Valve Locks Standard Conventional MAN13081-16 11/32" Valve Locks .050" Less Conventional MAN13083-16 11/32" Valve Locks Standard Conventional MAN13084-16 11/32" Valve Locks .050" More Conventional 10° MAN13151-8 5/16" Valve Locks Standard Bead Loc MAN13152-8 5/16" Valve Locks .050" More Bead Loc MAN13161-8 11/32" Valve Locks Standard Bead Loc MAN13162-8 11/32" Valve Locks .050" More Bead Loc MAN13194-16 11/32" Valve Locks Standard Conventional MAN13198-16 11/32" Valve Locks .050" More Conventional SB Chevy Steel Guide Plates Stamped for accuracy and heat treated to reduce Üi>À° iÃ}i`vÀÕÃiÜÌ xɣȸ`>°«Õà À`ð ÃivÀy>ÌÀÀ>Ãi`ÛiÀÃð-iÌvi} Ì° Part No. Description MAN42151-8 Raised Steel, On-Center Stud MAN42355-8 Flat Steel, On-Center Stud Note: Heat treated pushrods must be used with guide plates. Valve Stem Seals 6ÌÛ>ÛiÃi>Ã>Ài«Àwi`ÌVi>ÀÃ>° ° inners in triple valve springs. Sets of eight. Part No. Description Guide O.D. Seal O.D.
MAN24043-8 MAN24045-8
11/32" Valve Seals 11/32" Valve Seals
.500" .530"
.620" .674"
MAN11539-8 # Exhaust 1.600" .3415" .100" Longer MAN11869-8 Exhaust 1.600" .3415" .100" Longer MAN11749-8 S Exhaust 1.600" .3415" .100" Longer MAN11865-8 S Exhaust 1.600" .3415" .200" Longer MAN11751-8 S Exhaust 1.600" .3415" .200" Longer MAN11755-8 S Exhaust 1.600" .3415" .400" Longer MAN11513-8 S Exhaust 1.600" .3415" .500" Longer MAN11763-8 S Exhaust 1.625" .3415" .600" Longer MAN11592-8 Intake 1.937" .3415" Stock MAN11886-8 Intake 1.940" .3415" .100" Longer MAN11826-8 Intake 2.020" .3415" .100" Longer MAN11846-8 Intake 2.055" .3415" .100" Longer MAN11818-8 Intake 2.080" .3415" Stock MAN11844-8 Intake 2.080" .3415" .100" Longer MAN11858-8 Intake 2.080" .3415" .200" Longer
Wear Caps Reduce valve tip wear with 4140 alloy steel, heat-treated wear caps. Available in standard (16 per set), and non-rotating (8 per set). Part No. Description MAN42104-16 11/32" Wear Caps, Standard, 16 pcs.
11/32" Wear Caps, Non-Rotating, 8 pcs.
MAN42301-8
* 7° dish face and 4.911" length # Valve has 10° underhead angle. † Flat face and 4.936" length S Valve has 15° underhead angle.
282 2019 OPEN WHEEL PARTS AND ACCESSORIES
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