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