Page 412 - 2018 Racecar Engineering Drag Racing Parts and Accessories Catalog

Manley, an acknowledged leader in performance and racing Race Flo Valves
valves, offers a full selection of quality valves for most popular Race Flo Valves have been necked down in
applications in three categories, Race Master/Race Flo, Severe the port area to enhance flow. Exhaust valves
Duty/Severe Duty Pro Flo and Extreme Duty. are XH-426 stainless steel while intake valves
are NK-842 stainless steel. Valve stems are
fully chromed with hardened tips. Valves are
swirl polished, fully machined. “Pro-Flo” under
Race Master Valves head design also offers improved flow char-
Manley’s Race Master Valves have straight, fully acteristics. Sold in sets of eight. Also available
chromed stems, hardened tips and are thoroughly individually (to order, replace the -8 with a -1 at
machined and swirl polished. Intake valves are end of part number).
made of NK-842 stainless steel and exhaust valves Installed
are XH-426 stainless steel. Sold in sets of eight. Part No. Type Size Stem Height
Also available individually. To order, replace the -8 Small Block Chevrolet 262-400 1.500" .3415" Stock
MAN11521-8
Exhaust
with a -1 at end of part number. MAN11501-8 Exhaust 1.560" .3415" Stock
Installed MAN11565-8 Exhaust 1.600" .3415" Stock
Part No. Type Size Stem Height MAN11545-8 Exhaust 1.600" .3415" .100" Longer
Small Block Chevrolet 262-400 MAN11522-8 Intake 1.940" .3415" Stock
MAN11861-8 Exhaust 1.500" .3415" Stock MAN11500-8 Intake 2.000" .3415" Stock
MAN11863-8 Exhaust 1.600" .3415" Stock MAN11566-8 Intake 2.020" .3415" Stock
MAN11877-8 Exhaust 1.600" .3415" .100" Longer MAN11796-8 Intake 2.020" .3415" .100" Longer
MAN11321-8 Exhaust 1.600" .3415" .200" Longer MAN11568-8 Intake 2.055" .3415" Stock
MAN11860-8 Intake 1.940" .3415" Stock MAN11546-8 Intake 2.055" .3415" .100" Longer
MAN11318-8 Intake 2.020" .3415" .100" Longer MAN11560-8 Intake 2.080" .3415" .100" Longer
MAN11812-8 Intake 2.080" .3415" .100" Longer Big Block Chevrolet 396-454 - Stock 3/8" Stem Dia.
Small Block Chevy Gen. III LS1/LS2 MAN11517-8 Exhaust 1.725" .3715" Stock
MAN11361-8 Exhaust 1.550" .3136" Stock MAN11527-8 Exhaust 1.880" .3715" Stock
MAN11621-8 Exhaust 1.590" .3133" Stock MAN11514-8 Intake 2.065" .3715" Stock
MAN11360-8 Intake 2.000" .3136" Stock MAN11528-8 Intake 2.190" .3715" Stock
MAN11362-8 Intake 2.020" .3136" Stock MAN11526-8 Intake 2.250" .3715" Stock
MAN11620-8 Intake 2.165" .3133" Stock Chrysler 6.1L Hemi With Triple Groove
Big Block Chevrolet 396-454 MAN11670-8 Intake 2.100” .3125” Stock
MAN11881-8 Exhaust 1.880" .3415" Stock Chrysler 6.4L Hemi With Bead Loc Groove, 2011-Up
MAN11761-8 Exhaust 1.880" .3415" .100" Longer MAN12330B-8 Intake 2.140” .3125” Stock
MAN11872-8 Intake 2.190" .3415" Stock Big Block Chrysler 383-426 Wedge-440
MAN11720-8 Intake 2.190" .3715" .100" Longer MAN11859-8 Exhaust 1.740" .3720" Stock
MAN11874-8 Intake 2.250" .3415" Stock MAN11891-8 Exhaust 1.810" .3720" Stock
MAN11814-8 Intake 2.250" .3415" .100" Longer MAN11892-8 Intake 2.080" .3720" Stock
MAN11868-8 Intake 2.250" .3415" .250" Longer MAN11890-8 Intake 2.140" .3725" Stock
Small Block Chrysler 340-360 Small Block Ford 289-302-351W
MAN11781-8 Exhaust 1.600" .3715" Stock MAN11575-8 Exhaust 1.550" .3415" Stock
MAN11905-8 Exhaust 1.940" .3100" Stock MAN11578-8 Intake 1.850" .3420" Stock
MAN11782-8 Intake 2.020" .3715" Stock MAN11566-8* Intake 2.020" .3415" Stock
Ford 351C * Ford valves with .250" tips must use non rail type rockers or roller rockers.
MAN11873-8 Exhaust 1.710" .3415" Stock
MAN11872-8 Intake 2.190" .3415" Stock
MAN11874-8 Intake 2.250" .3415" Stock
Big Block Ford 429-460 Severe Duty “Pro-Flo” Valves
MAN11875-8 Exhaust 1.760" .3415" Stock Severe Duty “Pro-Flo” Valves offer many of
MAN11872-8 Intake 2.190" .3415" Stock
MAN11874-8 Intake 2.250" .3415" Stock the same features as the Race-Flo line, but
Pontiac 400-455 are made of severe duty material. “Pro-Flo”
MAN11355-8 Exhaust 1.770" .3415" Stock design offers an increase in flow up to 40%
MAN11364-8 Intake 2.110" .3415" Stock over other popular designs. Exhaust valves are
made from XH-428 stainless steel and intake
Extreme Duty Exhaust Valves valves are made from NK-844 stainless steel.
Valves are made of extremely hard XH-432 Xtremeal- Valve stems are fully chromed with hard-
loy material for severe, high temperature applications. ened tips. Valves are swirl polished and fully
Sold in sets of eight. Also available individually. To order, machined. Sold in sets of eight. Also available
replace the -8 with a -1 at end of part number. Offered individually (to order, replace the -8 with a -1
in 11/32" (.3415") and 3/8" (.3715") stem diameters. at end of part number).
Installed
Installed
Part No. Size Stem Height Part No. Type Size Stem Height
Big Block Chevrolet 396-454 Small Block Chevrolet 262-400
MAN11743-8 1.880" .3415" Stock MAN11827-8 Exhaust 1.600" .3415" Stock
MAN11737-8 1.880" .3415" .100" Longer MAN11823-8 Exhaust 1.600" .3415" .100" Longer
2.020"
.3415"
MAN11830-8
Intake
Stock
MAN11587-8 1.880" .3715" Stock
MAN11735-8 1.940" .3715" .100" Longer MAN11824-8 Intake 2.055" .3415" .100" Longer
MAN11772-8 Intake 2.080" .3415" .100" Longer
Big Block Chevrolet 396-454 - Stock 3/8" Stem Dia.
MAN11831-8 Exhaust 1.880" .3715" Stock
MAN11832-8 Intake 2.190" .3720" Stock
MAN11534-8 Intake 2.250" .3720" .200" Longer
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