Supersedes All Previous Catalogs Catalog No ... - TradeMotion.com

CYLINDER HEADS VALVES AND VALVE SPRINGS
P5 CYLINDER HEADS
Chamber Tappet Valve Valve Valve Int. Port Int. Flow Int. Port Exh. Port Valve Approx.
Part Number Description Material Size Angle Angle Sizes Stem Size Volume at .600" Shape Shape Cover Weight
*P5007509AB P5 Hemi Aluminum N/A 45° intake / 10° intake / N/A 5/16" N/A N/A Rect. Oval P5 P5 Hemi 36
59° exhaust 2° exhaust
Note: Use with P5007151 or partially machined block.
SMALL BLOCK CYLINDER HEADS (FOR USE WITH “R” BLOCKS OR ALUMINUM BLOCKS WITH 48° TAPPET BORE)
X-LONG STAGE VI/W7/W9 RACE
Part Number Engine/Model Location Diameter Length Material Groove Modification
*P4876580 X-long Intake 2.15" 5.40" Stainless 1 S 3/8" stem
*P4876570 X-long Intake 2.18" 5.40" Stainless 1 S 3/8" stem
*P4876571 X-long Intake 2.20" 5.40" Stainless 1 S 3/8" stem
*P4876572 X-long Intake 2.225" 5.40" Stainless 1 S 3/8" stem
W2 CYLINDER HEADS
Chamber Tappet Valve Valve Valve Int. Port Int. Flow Int. Port Exh. Port Valve Approx.
Part Number Description Material Size Angle Angle Sizes Stem Size Volume at .600" Shape Shape Cover Weight
*P5007445AB W2 cylinder head Cast iron 65 cc 48° 15° 2.02"/1.60" 3/8" 190 cc 265 cfm Oval W2 “D” W2/5 Std 5 bolt 51
*P5007708AB W2 cylinder head Cast iron 47 cc 48° 15° 2.02"/1.60" 3/8" 190 cc 265 cfm Oval W2 “D” W2/5 Std 5 bolt 51
W8 CYLINDER HEADS
Chamber Tappet Valve Valve Valve Int. Port Int. Flow Int. Port Exh. Port Valve Approx.
Part Number Description Material Size Angle Angle Sizes Stem Size Volume at .600" Shape Shape Cover Weight
*P4876281 NASCAR W8 ptly. mach. Aluminum 63 cc 48° 15° N/A N/A N/A N/A Rect. W8/9 “D” W8 W8 only 35
*P4876783 Drag Race W8 ptly. mach Aluminum 63 cc 48° 15° N/A N/A N/A N/A Rect. W8/9 “D” W8 W8 only 35
W9 CYLINDER HEADS
Chamber Tappet Valve Valve Valve Int. Port Int. Flow Int. Port Exh. Port Valve Approx.
Part Number Description Material Size Angle Angle Sizes Stem Size Volume at .600" Shape Shape Cover Weight
*P5007066 W9 partially machined Aluminum 52 cc 48° 15° N/A N/A 200 cc N/A Rect. W8/9 “D” W7/9 Std 5 bolt 22
*P5007065AB W9 cylinder head Aluminum 52 cc 48° 15° 2.15"/1.625" 11/32" 200 cc 290 cfm Rect. W8/9 “D” W7/9 Std 5 bolt 22
*P5007179AB W9 cylinder head Aluminum 52 cc 48° 15° 2.15"/1.625" 3/8" 200 cc 290 cfm Rect. W8/9 “D” W7/9 Std 5 bolt 22
*P5007855 W9 partially machined Aluminum 52 cc 48° 15° N/A N/A N/A N/A Rect. W8/9 “D” W7/9 Std 5 bolt 22
*P5007861 W9 partially machined Aluminum 52 cc 48° 13° N/A N/A N/A N/A Rect. W8/9 “D” W7/9 Std 5 bolt 22
W9 RAISED PORT HEADS
Chamber Tappet Valve Valve Valve Int. Port Int. Flow Int. Port Exh. Port Valve Approx.
Part Number Description Material Size Angle Angle Sizes Stem Size Volume at .600" Shape Shape Cover Weight
*P5007904 W9 partially machined Aluminum N/A 48° 13° N/A N/A N/A N/A N/A N/A Std 5 bolt N/A
*P5007952 W9 partially machined Aluminum N/A 48° 13° N/A N/A N/A N/A N/A N/A Std 5 bolt N/A
SMALL BLOCK CYLINDER HEADS (FOR USE WITH PRODUCTION BLOCKS OR “R” BLOCKS WITH 59° TAPPET BORE)
*P4876573 X-long Intake 2.25" 5.40" Stainless 1 S 3/8" stem
*P5249886 X-long Exhaust 1.60" 5.40" Stainless 1 S 3/8" stem
*P5249887 X-long Exhaust 1.625" 5.40" Stainless 1 S 3/8" stem
*P4876574 X-long Exhaust 1.81" 5.40" Stainless 1 S 3/8" stem
*P5249884 X-long Intake 2.125" 5.40" Stainless 1 S 5/16" stem
*P5249885 X-long Intake 2.15" 5.40" Stainless 1 S 5/16" stem
*P4876579 X-long Intake 2.18" 5.40" Stainless 1 S 5/16" stem, tulip
*P4876578 X-long Intake 2.20" 5.40" Stainless 1 S 5/16" stem, tulip
*P4876577 X-long Intake 2.225" 5.40" Stainless 1 S 5/16" stem, tulip
Notes: Use 3/8" stem with W7 heads P4876043 and 044, and W9 heads P5007179.
Groove design: 1 S = one square groove.
VALVE SPRINGS/RETAINERS
Part Number Inst. Ht. Description O.D. Wire Dia. Lift Range Material Retainer
*P5249464 1.64" Single/damper 1.42" .187" .400"/.525" Chrome silicon P4452032
*P2806077 1.83"/1.86" Dual/damper 1.52" .215" .500"/.610" Chrome vanadium P4529823/P4007178
*P5249864 2.00"/2.02" Single/damper 1.55" .216" .460"/.550" Chrome silicon P4452033/P4286573
*P5249848 1.86"/1.87" Single/damper 1.55" .216" .480"/.540" Chrome silicon P4452033/P4286573/P4007178
*P4876064 1.86"/1.88" Dual/damper 1.60" .216" .590"/.640" Chrome silicon P4286573/P4007178
*P5249849 2.00"/2.02" Dual/damper 1.55" .216" .650"/.750" Chrome silicon P4286573/P4007178/P4120785
*P3690933 1.83"/1.86" Single/damper 1.53" .224" .440"/.500" Chrome vanadium P4452033/P4286573
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W2 CYLINDER HEADS
Chamber Tappet Valve Valve Valve Int. Port Int. Flow Int. Port Exh. Port Valve Approx.
Part Number Description Material Size Angle Angle Sizes Stem Size Volume at .600" Shape Shape Cover Weight
*P5249769 W2 cylinder head Cast Iron 65 cc 59° 18° 2.02"/1.60" 3/8" 180 cc 260 cfm Oval W2 “D” W2/W5 Std 5 bolt 51
*P5007355 W2 cylinder head Cast Iron 68 cc 59° 18° 2.02"/1.60" 3/8" 189 cc 260 cfm Oval W2 “D” W2/W5 Std 5 bolt 51
“LATE 360” CYLINDER HEADS
*P5007086 “Late 360” Cast Iron 60 cc 59° 18° 1.92"/1.625" 8 mm 153 cc 190 cfm Rect. Std 10 bolt 54
*P5007145 “Late 360” R/T Cast Iron 60 cc 59° 18° 1.92"/1.625" 8 mm 180 cc 229 cfm Rect. Std 10 bolt 57
*P4876624 “Late 360” Aluminum 53 cc 59° 18° 1.92"/1.625" 8 mm 177cc 222 cfm Rect. Std 10 bolt 25
NASCAR TOURING SERIES HEAD
*P5007928 BrodixNTS — Aluminum 67 cc 59° 18° 2.15"/1.60" 11/32" N/A N/A Rect. W5 “D” Unique N/A
unmachined
*Not legal for sale on pollution-controlled vehicles
or vehicles registered for highway use.
*P2946353 1.99"/2.00" Dual/damper 1.59" .224" .520"/.700" Special P4286573/P4007178/P4120785
*P4007536 2.00"/2.02" Triple 1.62" .225" .640"/.745" Chrome silicon P4120783/P4286775
Notes:
1. All valve springs are sold individually.
2. On W7 heads and others with X-long valves, like the 5.40" length, the typical installed spring height is 2.00" so only the springs listed above for the
1.99" thru 2.02" installed heights can be used.
3. With a single spring, the damper is installed inside the main spring; with a dual spring, the damper is installed between the inner and outer springs.
There is no damper in the triple springs.
4. Retainers — Those listed are the basic recommendation. Check the actual retainer listing for other options — added installed height, materials, lock size.
*Not legal for sale on pollution-controlled vehicles
or vehicles registered for highway use.
Go to mopar.com for complete product listings.
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