Page 455 - 2017 Racecar Engineering Circle Track Parts and Accessories Catalog

* To purchase individually substitute
-1 for the -8 suffix in part number.

SEVERE DUTY VALVES 10° TITANIUM RETAINERS
Severe duty exhaust valves are made of XH-428 stainless steel which has Manley’s 6AL 4V titanium 10° retainers
double the tensile strength of imported valves at 1500°F. Intake valves, have the durability needed for racing
constructed of NK-844 stainless steel, have over 1000 times more fatigue engines. Sold in sets of 16.
strength than imported valves. Sold in sets of 8. Spring Dimensions
Part No. Type Size Stem Installed Height Part No. Type Height Spring O.D. A B C D
Small Block Chevrolet 262-400 MAN23640-16 Double +.100" 1.625" 1.500" 1.175" .850" –
MAN11567-8* Exhaust 1.500" .3415" Stock MAN23644-16 Double Std. 1.550" 1.500" 1.140" .740" –
MAN11543-8* Exhaust 1.600" .3415" Stock MAN23648-16 Double +.100" 1.580"/1.610" 1.500" 1.150" .825" –
MAN11595-8 † Exhaust 1.600" .3415" Stock MAN23650-16 Double +.100" 1.550" 1.500" 1.140" .740" –
MAN11539-8 # Exhaust 1.600" .3415" .100" Longer MAN23654-16 Double Std. 1.625" 1.500" 1.175" .765" –
MAN11869-8 Exhaust 1.600" .3415" .100" Longer MAN23655-16 Double +.100" 1.625" 1.500" 1.175" .765" –
MAN11749-8 S Exhaust 1.600" .3415" .100" Longer MAN23658-16 Double Std. 1.550" 1.500" 1.105" .710" –
MAN11865-8 S Exhaust 1.600" .3415" .200" Longer MAN23660-16 Double +.100" 1.550" 1.500" 1.105" .710" –
MAN11751-8 S Exhaust 1.600" .3415" .200" Longer MAN23661-16 Double +.100" 1.550" 1.500" 1.120" .705" –
MAN11755-8 S Exhaust 1.600" .3415" .400" Longer
MAN11513-8 S Exhaust 1.600" .3415" .500" Longer VALVE LOCKS
MAN11763-8 S Exhaust 1.625" .3415" .600" Longer Heat treated, black oxide coated steel Locks are available
MAN11592-8 Intake 1.937" .3415" Stock in extra thick, Super 7° or traditional 10° for conventional or
MAN11886-8 Intake 1.940" .3415" .100" Longer bead lock valves. Sets of 8 (16 pieces) or 16 (32 pieces).
MAN11826-8 Intake 2.020" .3415" .100" Longer Part No. Description Installed Height Lock Style
MAN11846-8 Intake 2.055" .3415" .100" Longer Super 7°
MAN11818-8 Intake 2.080" .3415" Stock MAN13080-16 5/16" Valve Locks Standard Conventional
MAN11844-8 Intake 2.080" .3415" .100" Longer MAN13081-16 11/32" Valve Locks .050" Less Conventional
MAN11858-8 Intake 2.080" .3415" .200" Longer MAN13083-16 11/32" Valve Locks Standard Conventional
* 7° dish face and 4.911" length # Valve has 10° underhead angle. MAN13084-16 11/32" Valve Locks .050" More Conventional
† Flat face and 4.936" length S Valve has 15° underhead angle. 10°
MAN13151-8 5/16" Valve Locks Standard Bead Loc
NEXTEK SERIES MAN13152-8 5/16" Valve Locks .050" More Bead Loc
OVAL TRACK VALVE SPRINGS MAN13160-8 11/32" Valve Locks .050" Less Bead Loc
Bead Loc
Standard
MAN13161-8
11/32" Valve Locks
Put an end to spring degradation. NexTek springs are specially MAN13162-8 11/32" Valve Locks .050" More Bead Loc
processed from chrome silicon that undergoes winding, thermal MAN13194-16 11/32" Valve Locks Standard Conventional
treating and finishing processes prior to shipment. Spring I.D.’s are MAN13198-16 11/32" Valve Locks .050" More Conventional
fully chamfered for retainer clearance. Sold in sets of 16.
Max. Seat Open Coil PUSHRODS BY APPLICATIONS
Part No. Application O.D./I.D. Valve Lift Pressure Pressure Bind
Late Model,
MAN221432-16 1.530"/.750" .630" 162@1.900" 425@1.300" 1.200"
Flat Tappet We’ve listed common applications of 5/16" and 3/8" diameter chrome moly
MAN221440P-16 † Oval Track, Roller 1.570"/.760" .700" 255@2.000" 629@1.300" 1.190" pushrods. All pushrods are 4130 steel, heat treated and black oxide finished for
MAN221441P-16 † Oval Track, Roller 1.570"/.750" .730" 280@2.030" 700@1.300" 1.215" corrosion protection. Sets of 8 or 16.
MAN221442-16 Oval Track, Roller 1.560"/.812" .750" 260@2.000" 660@1.250" 1.200" Part No. Application Length Dia.
MAN221443-16 BGN, WoO, LM 1.580"/.832" .730" 235@1.950" 610@1.250" 1.170" MAN25709-16 SB Chevrolet 262-400 Stock Length 7.800" 5/16"
MAN221443P-16 † BGN, WoO, LM 1.580"/.832" .730" 235@1.950" 610 @ 1.250" 1.170" MAN25787-8 SB Chevrolet 262-400 Stock Length 7.800" 3/8"
MAN221444-16 BGN, WoO, LM 1.610"/.842" .750" 235@2.050" 645@1.300" 1.220" MAN25711-16 SB Chevrolet 262-400 +.050" 7.850" 5/16"
MAN221445P-16 † Oval Track, Roller 1.620"/.852" .800" 280@2.050" 680@1.250" 1.200" MAN25712-16 SB Chevrolet 262-400 +.100" 7.900" 5/16"
MAN221452SF-16* Roller, w/o Damper 1.550"/.800" .825" 250@2.025" 750@1.200" 1.150" MAN25788-8 SB Chevrolet 262-400 +.100" 7.900" 3/8"
MAN221454-16 Sportsman 1.650"/.855" .850" 290 @ 2.000" 825 @ 1.150" 1.105" MAN25706-16 SB Ford 351C Stock Length 8.400" 5/16"
* Signifies Super Finished. † Signifies polished finish. MAN25744-16 SB Ford 351W 8.150" 5/16"
CHROME MOLY PUSHRODS
Heat treated, 4130 chrome moly pushrods have swaged ends and are black oxide finished for corrosion protection. Available in 5/16" (.080"wall), 3/8" (.080" and
.120" wall) and 7/16" (.125" wall) diameters. The 5/16" pushrods are available individually and in sets of 16; 3/8" pushrods are available individually and in sets of
8; and 7/16" pushrods are sold individually. For singles, replace the -16 or -8 with a -1.
5/16" Dia., 3/8" Dia., 3/8" Dia., 5/16" Dia. 3/8" Dia. 3/8" Dia. 7/16" Dia. 5/16" Dia. 3/8" Dia. 3/8" Dia. 7/16" Dia.
.080" Wall .080" Wall .120" Wall .080" Wall .080" Wall .120" Wall .125" Wall .080" Wall .080" Wall .120" Wall .125" Wall
Length Part No. Part No. Part No. Length Part No. Part No. Part No. Part No. Length Part No. Part No. Part No. Part No.
7.000" MAN25700-16 – MAN25319-1 7.800" MAN25709-16 MAN25787-8 – – 8.380" – MAN25769-8 – –
7.050" MAN25727-16 – – 7.850" MAN25711-16 MAN25878-8 – – 8.400" MAN25706-16 MAN25840-8 MAN25347-1 MAN25145-1
7.100" MAN25729-16 – – 7.900" MAN25712-16 MAN25788-8 – – 8.425" MAN25764-16 – – –
7.150" MAN25741-16 – – 7.950" MAN25715-16 MAN25814-8 – – 8.450" MAN25708-16 MAN25845-8 MAN25348-1 MAN25146-1
7.200" MAN25733-16 – – 8.000" MAN25716-16 MAN25816-8 MAN25339-1 – 8.500" MAN25774-16 MAN25850-8 MAN25349-1 MAN25147-1
7.250" MAN25734-16 – – 8.050" MAN25721-16 MAN25821-8 MAN25340-1 – 8.550" MAN25710-16 MAN25855-8 MAN25350-1 MAN25148-1
7.300" MAN25730-16 – – 8.100" MAN25722-16 MAN25810-8 MAN25341-1 – 8.600" MAN25718-16 MAN25860-8 MAN25351-1 MAN25149-1
7.350" MAN25751-16 – – 8.150" MAN25744-16 MAN25815-8 MAN25342-1 – 8.650" MAN25724-16 MAN25865-8 MAN25352-1 MAN25150-1
7.400" MAN25735-16 MAN25822-8 – 8.200" MAN25745-16 MAN25820-8 MAN25343-1 MAN25140-1 8.680" – MAN25797-8 – MAN25151-1
7.450" MAN25736-16 MAN25836-8 – 8.250" MAN25701-16 MAN25825-8 MAN25344-1 MAN25141-1 8.700" MAN25799-16 MAN25870-8 MAN25353-1 MAN25152-1
7.500" MAN25754-16 MAN25854-8 – 8.275" MAN25753-16 – – – 8.750" MAN25738-16 MAN25875-8 MAN25354-1 MAN25153-1
7.550" MAN25755-16 MAN25818-8 – 8.280" – MAN25795-8 – MAN25142-1 8.800" MAN25742-16 MAN25880-8 MAN25355-1 MAN25154-1
7.600" MAN25767-16 MAN25876-8 – 8.300" MAN25702-16 MAN25830-8 MAN25345-1 MAN25143-1 8.850" MAN25746-16 MAN25885-8 MAN25356-1 MAN25155-1
7.650" MAN25768-16 – – 8.325" – MAN25826-8 – – 8.900" MAN25758-16 MAN25890-8 MAN25357-1 MAN25156-1
7.700" MAN25772-16 MAN25828-8 – 8.350" MAN25703-16 MAN25835-8 MAN25346-1 MAN25144-1 8.950" MAN25757-16 MAN25895-8 MAN25358-1 MAN25157-1
7.750" MAN25707-16 MAN25832-8 – 8.375" MAN25763-16 – – – 9.000" – MAN25900-8 MAN25359-1 MAN25158-1
7.794" MAN25785-16 † – –
† 1010 material
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