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Chevy Big-block v-8
Valve Lifters and Components
12371044
Hydraulic Lifter Kit (set of 16, not shown)
• For use on all 396, 427, 454, and 502 engines that use
hydraulic flat tappet lifters
• For single-service replacement use P/N 5232720
Camshafts
The camshaft is one of the most important factors in determining
an engine’s overall performance profile and capability. GM
Performance Parts' wide array of precision-engineered, extensively
tested camshafts allows you to choose the best cam for your
application. In order to avoid possible engine damage, a distributor
with a melonized steel gear must be used with steel camshafts.
17102353
Lifter Assembly (single piece, not shown)
• Designed for use with the Gen V 454 and 502 engines
• Used when no adjustable rocker arms are required
• Package contains 1 lifter assembly
A. 17120060
Hydraulic Roller Lifter Kit, ZZ572/620
• Roller valve lifters used on the ZZ572/620 engines
• Use with camshaft P/N 88961557, intake pushrod
P/N 88961559, exhaust pushrod P/N 88961558 and
rocker arm P/N 12361323
B. 12371056
Hydraulic Roller Lifter Kit
• Hydraulic roller lifter retainer kit can be used on all Gen
VI 454 and 502 engines that are machined for hydraulic
roller lifters
• Includes 16 roller lifters P/N 17120061, 8 lifter guides,
1 lifter guide retainer and 4 retainer bolts
• For single service replacement lifter, use P/N 17120061
NOTE: These lifters allow more oil to the rocker arms than
the late-model truck roller lifters.
A
Hydraulic Roller Lifter Kit, ZZ572/620
Big-Block Camshafts
Part Description Duration Maximum Lobe Technical Notes
Number @ .050" Lift (in) Centerline
lift (deg)
(deg)
10185060 Hydraulic flat I: 220 I: .500 115 Street high performance and marine cam as used in Gen V 454 HO engines.
tappet 454ci E: 220 E: .500 Advanced 5°. Use spring P/N 3970627.
14096209 Hydraulic flat I: 220 I: .500 115 Street high performance and marine cam as used in Gen V 502 HO engines.
tappet 502ci E: 220 E: .500 Use spring P/N 3970627.
12366543 Steel hydraulic I: 224 I: .527 110 For 502/502 special engine. Must use distributor gear P/N 10456413.
roller E: 234 E: .544
24502611 Steel hydraulic I: 211 I: .510 112 For 454 and 502 HO engines. Must use distributor gear P/N 10456413.
roller E: 230 E: .540
88961447 Steel mechanical I: 236 I: .640 I: 110 ATDC For ZL1 Ram Jet, discontinued
roller E: 232 E: .598 E: 109 BTDC
88961557 Steel hydraulic I: 254 I: .632 112 For ZZ572/620 engine
roller E: 264 E: .632
Chevy BIG-block v-8
88962216 Steel mechanical I: 278 I: .714 112 For ZZ572/720 engine
roller E: 282 E: .714
C. 88962920
Mechanical Roller Lifter, ZZ572/720
• Mechanical roller valve lifters used on the ZZ572/720
horsepower engines
• Use with camshaft P/N 88962216, intake pushrod
P/N 88962284, exhaust pushrod P/N 88962283 and
rocker arm P/N 12361323
• Kit of 16 lifters
12551397
Roller Tappet Guides (not shown)
• Roller tappet guides used with all 502 engines and
454 HO engines
• Used with roller camshaft engines
• Sold individually; order 8 per engine
12551399
Roller Tappet Guide Retainer (not shown)
• Roller tappet guide retainer used with all 502 engines
and 454 HO engines
• Used with roller camshaft engines
• Order only 1 per engine
B
Hydraulic Roller Lifter Kit
Big-Block Camshaft and Lifter Kits, includes camshaft and 16 lifters
Part Description Duration Maximum Lobe Technical Notes
Number @ .050" Lift (in) Centerline
lift (deg)
(deg)
12361314 Hydraulic flat I: 202 I: .468 110 Low-end truck torque cam for all Big-Block truck applications from normal driving to
tappet E: 210 E: .485 towing/hauling; suitable for computer controlled Mark IV and V engines
12361316 Hydraulic flat I: 210 I: .485 115 Designed for ’90-'93 454SS pickup; offers increased mid-range and top-end performance
tappet E: 218 E: .490
12353920 Hydraulic flat I: 228 I: .540 114 For all 9.5-10.75 C.R. Big-Block V-8s including ’65-'66 CA, ’65-'68 Federal emissions, and
tappet E: 238 E: .542 ’66-‘92 off-highway/marine; good idle, daily performance and mild bracket racing use;
2200-5700 rpm range
12353922 Hydraulic flat I: 218 I: .500 114 For 8.75-10.5 C.R. 396, 427, 454, 502 Big-Blocks; good mid-range
tappet E: 228 E: .500 2000-4500 rpm, idle, fuel efficiency and towing capabilities
12364055 Hydraulic flat I: 214 I: .461 115 Blueprinted, dual pattern replacement for P/N 3883986
tappet E: 218 E: .480 350 HP 396 cam; for 8.75-10.0 C.R., 1500-3800 rpm range
12364058 Mechanical I: 264 I: .560 112 Blueprinted, dual pattern replacement for P/N 3925535 435 HP
lifters E: 269 E: .580 427 early L88 camshaft; for 11.5-12.0 C.R. and 4400-7000 rpm
NOTE: IMPORTANT! Distributor with melonized steel gear
MUST be used with steel camshafts or engine damage will occur.
Camshaft Components
D. 12364086
Cam Button Spacer
• Solid aluminum button for all 1965-1995 Big-Blocks
• Limits lateral movement of roller lifter camshafts when
installed in engines without a cam thrust plate
E. 12499434
Camshaft Bearings, 572 Engine
• Five standard-size premium camshaft bearings for the
ZZ572 engine
C Mechanical Roller Lifter, ZZ572/720
Cam Button Spacer
D
Camshaft Bearings, 572 Engine
E
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Buy online at www.gmperformanceparts.com
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