Page 413 - 2018 Racecar Engineering Drag Racing Parts and Accessories Catalog

Severe Duty Valves Valve Locks
Severe Duty exhaust valves are made of XH-428 stain- Heat treated, black oxide coated steel
less steel which at 1500°F is nearly double the strength locks are available in extra thick, Super 7°
of imported valves. Intake valves, constructed of NK-844 or traditional 10° for conventional or bead lock valves. Sets of 8
stainless steel, have over 1000 times better fatigue life (16-pieces) or 16 (32-pieces).
than imported valves. Sold in sets of eight. Part No. Description Installed Height Lock Style
Installed Super 7°
Part No. Type Size Stem Height MAN13050-8 5/16” Valve Locks .050” Less Bead Loc
Small Block Chevrolet 262-400 MAN13051-8 5/16" Valve Locks Standard Bead Loc
MAN11567-8 Exhaust 1.500" .3415" Stock MAN13052-8 5/16" Valve Locks .050" More Bead Loc
MAN11887-8 Exhaust 1.500" .3415" .100" Longer MAN13060-8 11/32” Valve Locks .050” Less Bead Loc
MAN11543-8* Exhaust 1.600" .3415" Stock MAN13061-8 11/32" Valve Locks Standard Bead Loc
MAN11595-8** Exhaust 1.600" .3415" Stock MAN13062-8 11/32" Valve Locks .050" More Bead Loc
MAN11539-8 § Exhaust 1.600" .3415" .100" Longer MAN13080-16 5/16" Valve Locks Standard Conventional
MAN11231-8 Exhaust 1.600" .3110" .100" Longer MAN13081-16 11/32" Valve Locks .050" Less Conventional
MAN11869-8 Exhaust 1.600" .3415" .100" Longer MAN13083-16 11/32" Valve Locks Standard Conventional
MAN11751-8 † Exhaust 1.600" .3415" .200" Longer MAN13084-16 11/32" Valve Locks .050" More Conventional
MAN11865-8 †† Exhaust 1.600" .3415" .200" Longer Machined 7°
MAN11755-8 Exhaust 1.600" .3415" .400" Longer MAN13094-16 8mm Valve Locks .050” Less GM LS/LT-1
MAN11513-8 Exhaust 1.600" .3415" .500" Longer 10°
MAN11537-8 Exhaust 1.625" .3415" .100" Longer MAN13096-16 5/16" Valve Locks Standard Conventional
MAN11763-8 Exhaust 1.625" .3415" .600" Longer MAN13097-16* 11/32" Valve Locks Standard Conventional
MAN11592-8 Intake 1.937" .3415" Stock MAN13150-8 5/16” Valve Locks .050” Less Bead Loc
MAN11596-8 Intake 2.020" .3415" Stock MAN13151-8 5/16" Valve Locks Standard Bead Loc
MAN11826-8 Intake 2.020" .3415" .100" Longer MAN13152-8 5/16" Valve Locks .050" More Bead Loc
MAN11544-8 Intake 2.020" .3415" .200" Longer MAN13160-8 11/32" Valve Locks .050" Less Bead Loc
MAN11598-8* Intake 2.055" .3415" Stock MAN13161-8** 11/32" Valve Locks Standard Bead Loc
MAN11846-8 Intake 2.055" .3415" .100" Longer MAN13162-8 11/32" Valve Locks .050" More Bead Loc
MAN11844-8 Intake 2.080" .3415" .100" Longer MAN13170-8 7mm Valve Locks Standard Bead Loc
MAN11858-8 Intake 2.080" .3415" .200" Longer MAN13194-16 11/32" Valve Locks Standard Conventional
MAN11862-8 Intake 2.100" .3415" .200" Longer
MAN11848-8 Intake 2.125" .3415" .100" Longer MAN13195-16 3/8" Valve Locks Standard Conventional
Small Block Chevrolet Gen. III/IV LS7 MAN13198-16 11/32" Valve Locks .050" More Conventional
MAN11679-8 Exhaust 1.610" .3136" Stock * Not recessed to accept a wear cap. ** Lightweight Titanium material
MAN11688-8 Intake 2.205" .3133" Stock
Big Block Chevrolet 396-454 - Stock 3/8" Valve Stem Dia. Titanium 10° Valve Locks
MAN11553-8 Exhaust 1.720" .3715" Stock Valve Locks are precision crafted from lightweight,
MAN11563-8 Exhaust 1.880" .3715" Stock
MAN11535-8 Exhaust 1.900" .3715" .100" Longer yet durable titanium.
MAN11520-8 Intake 2.190" .3720" Stock Part No. Valve Stem Installed Height Groove Type Qty.
MAN11562-8 Intake 2.250" .3720" Stock MAN13084T-16 .3415” .050” More Conventional 16 Pair
MAN11524-8 Intake 2.250" .3720" .100" Longer MAN13151T-8 .3110" Standard Bead Loc 8 Pair
MAN11530-8 Intake 2.300" .3720" .100" Longer MAN13161T-8 .3415" Standard Bead Loc 8 Pair
Big Block Chevrolet 396-454 - 11/32" Valve Stem Dia. MAN13194T-16 .3415" Standard Conventional 16 Pair
MAN11843-8 Exhaust 1.880" .3415" Stock
MAN11815-8 § Exhaust 1.880" .3415" .100" Longer
MAN11845-8 §§ Exhaust 1.880" .3415" .100" Longer
MAN11817-8 Exhaust 1.900" .3415" Stock Wear Caps
MAN11811-8 § Exhaust 1.900" .3415" .100" Longer
MAN11847-8 §§ Exhaust 1.900" .3415" .100" Longer Reduce valve tip wear with 4140 alloy steel,
MAN11800-8 Intake 2.190" .3415" Stock heat treated wear caps. Available in standard
MAN11822-8 Intake 2.190" .3415" .100" Longer (16 per set), and non-rotating (sets of eight).
MAN11802-8 Intake 2.250" .3415" Stock Part No. Description
MAN11850-8 Intake 2.250" .3415" .100" Longer MAN42104-16 11/32" Wear Caps, Standard, 16 Pieces
MAN11856-8 Intake 2.250" .3415" .250" Longer MAN42118-8 7mm (.2740") Wear Caps, Non-Rotating, 8 Pieces
MAN11842-8 Intake 2.300" .3415" .100" Longer MAN42125-8 8mm (.3130") Wear Caps, 8 Pieces
MAN11854-8 Intake 2.300" .3415" .250" Longer MAN42139-8 5/16" Wear Caps, 8 Pieces
MAN11878-8 Intake 2.300" .3415" .350" Longer MAN42301-8 11/32" Wear Caps, Non-Rotating, 8 Pieces
MAN11838-8 Intake 2.325” .3415” .250” Longer
MAN11880-8 Intake 2.350" .3415" .350" Longer
Ford 351C, Big Block Ford 429-460
MAN11529-8 Exhaust 1.760" .3415" Stock
MAN11801-8 Exhaust 1.760" .3415" .100" Longer
MAN11813-8 Exhaust 1.810" .3415" Stock
MAN11800-8 Intake 2.190" .3415" Stock
MAN11822-8 Intake 2.190" .3415" .100" Longer
MAN11850-8 Intake 2.250" .3415" .100" Longer
Oldsmobile 330-455
MAN11547-8 Exhaust 1.710" .342" Stock
MAN11548-8 Intake 2.072" .342" Stock
* Valve has 7° dish face and 4.911" length. ** Valve has flat face and
4.936" length. † Valve has 5.165" length. †† Valve has 5.121" length.
§ Valve has 10° under head angle. §§ Valve has 25° under head angle.
COREY HERMAN
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