Page 434 - 2020-2021 Racecar Engineering Drag Racing Parts and Accessories Catalog

2020 DRAG RACING

Race Master Valves Race Flo Valves
Manley’s Race Master Valves have straight, fully chromed Race Flo Valves have been necked down in the port area
stems, hardened tips, and are thoroughly machined and to enhance flow. Exhaust valves are XH-426 stainless steel
swirl polished. Intake valves are made of NK-842 stainless while intake valves are NK-842 stainless steel. Valve stems
steel and exhaust valves are XH-426 stainless steel. Sold in are fully chromed with hardened tips. Valves are swirl
sets of eight. To order individually, replace the -8 with a -1 polished, fully machined. “Pro-Flo” under head design also
at end of part number. offers improved flow characteristics. Sold in sets of eight.
Part No. Type Size Stem Installed Height (To order individually replace the -8 with a -1 at end of
Small Block Chevrolet 262-400 part number).
MAN11861-8 Exhaust 1.500" .3415" Stock Part No. Type Size Stem Installed Height
MAN11863-8 Exhaust 1.600" .3415" Stock Small Block Chevrolet 262-400
MAN11877-8 Exhaust 1.600" .3415" .100" Longer MAN11521-8 Exhaust 1.500" .3415" Stock
MAN11321-8 Exhaust 1.600" .3415" .200" Longer MAN11501-8 Exhaust 1.560" .3415" Stock
MAN11860-8 Intake 1.940" .3415" Stock MAN11565-8 Exhaust 1.600" .3415" Stock
MAN11318-8 Intake 2.020" .3415" .100" Longer MAN11545-8 Exhaust 1.600" .3415" .100" Longer
MAN11812-8 Intake 2.080" .3415" .100" Longer MAN11522-8 Intake 1.940" .3415" Stock
Small Block Chevy Gen. III LS1/LS2 MAN11500-8 Intake 2.000" .3415" Stock
MAN11361-8 Exhaust 1.550" .3136" Stock MAN11566-8 Intake 2.020" .3415" Stock
MAN11621-8 Exhaust 1.590" .3133" Stock MAN11796-8 Intake 2.020" .3415" .100" Longer
Stock
MAN11360-8 Intake 2.000" .3136" Stock MAN11568-8 Intake 2.055" .3415" .100" Longer
.3415"
Intake
2.055"
MAN11546-8
MAN11362-8 Intake 2.020" .3136" Stock MAN11560-8 Intake 2.080" .3415" .100" Longer
MAN11620-8 Intake 2.165" .3133" Stock Big Block Chevrolet 396-454 - Stock 3/8" Stem Dia.
Big Block Chevrolet 396-454 MAN11517-8 Exhaust 1.725" .3715" Stock
MAN11881-8 Exhaust 1.880" .3415" Stock MAN11527-8 Exhaust 1.880" .3715" Stock
MAN11761-8 Exhaust 1.880" .3415" .100" Longer MAN11514-8 Intake 2.065" .3715" Stock
MAN11872-8 Intake 2.190" .3415" Stock MAN11528-8 Intake 2.190" .3715" Stock
MAN11720-8 Intake 2.190" .3715" .100" Longer MAN11526-8 Intake 2.250" .3715" Stock
MAN11874-8 Intake 2.250" .3415" Stock Chrysler 6.1L Hemi With Triple Groove
2.100”
Intake
MAN11670-8
.3125”
MAN11814-8 Intake 2.250" .3415" .100" Longer Chrysler 6.4L Hemi With Bead Loc Groove, 2011-Up Stock
MAN11868-8 Intake 2.250" .3415" .250" Longer MAN12330B-8 Intake 2.140” .3125” Stock
Small Block Chrysler 340-360 Big Block Chrysler 383-426 Wedge-440
MAN11781-8 Exhaust 1.600" .3715" Stock MAN11859-8 Exhaust 1.740" .3720" Stock
MAN11905-8 Exhaust 1.940" .3100" Stock MAN11891-8 Exhaust 1.810" .3720" Stock
MAN11782-8 Intake 2.020" .3715" Stock MAN11892-8 Intake 2.080" .3720" Stock
Chrysler/Dodge 6.1L Hemi MAN11890-8 Intake 2.140" .3725" Stock
MAN11669-8 Exhaust 1.595" 5/16" Stock/Triple Groove Small Block Ford 289-302-351W
MAN11671-8 Exhaust 1.625" 5/16" Stock/Triple Groove MAN11578-8 Intake 1.850" .3420" Stock
Chrysler/Dodge 6.4L Hemi, 2011-Up MAN11566-8* Intake 2.020" .3415" Stock
MAN12331B-8 Exhaust 1.654" 5/16" Stock/Bead Loc Groove *Ford valves with .250" tips must use non rail type rockers or roller rockers.
MAN12333B-8 Exhaust 1.675" 5/16" Stock/Bead Loc Groove
Ford 351C Severe Duty “Pro-Flo” Valves
MAN11873-8 Exhaust 1.710" .3415" Stock Severe duty “Pro-Flo” Valves offer many of the same
MAN11872-8 Intake 2.190" .3415" Stock
MAN11874-8 Intake 2.250" .3415" Stock features as the Race-Flo line, but are made of severe -duty
Big Block Ford 429-460 material. “Pro-Flo” design offers an increase in flow up to
MAN11875-8 Exhaust 1.760" .3415" Stock 40% over other popular designs. Exhaust valves are made
MAN11872-8 Intake 2.190" .3415" Stock from XH-428 stainless steel and intake valves are made
MAN11874-8 Intake 2.250" .3415" Stock
Pontiac 400-455 from NK-844 stainless steel. Valve stems are fully chromed
MAN11355-8 Exhaust 1.770" .3415" Stock with hardened tips. Valves are swirl polished and fully machined. Sold in
MAN11364-8 Intake 2.110" .3415" Stock sets of eight. To order individually, replace the -8 with a -1 at end of part
number).
Extreme Duty Exhaust Valves Part No. Type Size Stem Installed Height
Valves are made of extremely hard XH-432 Xtremealloy material for Small Block Chevrolet 262-400
Stock
severe, high temperature applications. Sold in sets of eight. To order MAN11827-8 Exhaust 1.600" .3415" .100" Longer
1.600"
Exhaust
MAN11823-8
.3415"
individually, replace the -8 with a -1 at end of part number. Offered in MAN11830-8 Intake 2.020" .3415" Stock
11/32" (.3415") and 3/8" (.3715") stem diameters. MAN11824-8 Intake 2.055" .3415" .100" Longer
Part No. Size Stem Installed Height MAN11772-8 Intake 2.080" .3415" .100" Longer
Big Block Chevrolet 396-454 Big Block Chevrolet 396-454 - Stock 3/8" Stem Dia.
MAN11743-8 1.880" .3415" Stock MAN11831-8 Exhaust 1.880" .3715" Stock
MAN11737-8 1.880" .3415" .100" Longer MAN11832-8 Intake 2.190" .3720" Stock
MAN11587-8 1.880" .3715" Stock MAN11534-8 Intake 2.250" .3720" .200" Longer
MAN11735-8 1.940" .3715" .100" Longer
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