1 Requires screw-in studs & guide plates.
2 Requires machining on cylinder heads.
3 Valve spring oil shield available.
4 Requires .150" longer pushrod.
5 Pedestal style only (fits'74-'79).
6 Requires Bronze distributor gear.
7 Offset lifters available.
8 Stock springs cannot be used.
9 Fits only certain years.
10 50-State legal for '93 & earlier Chevy V6 200-229 c.i. C.A.R.B. E.O. #D-279-4.
11 Requires thrust button & wear plate.
12 '92 & later w/non adjustable valve train can not use non-stock base circle cams
13 Lifters only. Does not include valley pan or link bars.
14 Not for engines with balance shaft.
15 Hi-Tech pushrod kits available.
16 '88-'93 'Vette engines require COMP guide plate.
17 Lifters only, does not include lifter retainers or guides.
18 Longer pushrods may be required.
19 Hi-Tech Lite Lifters. No Chamfers.
20 10i steel retainer. Use with 611-16 locks.
21 10i Super Locks.
22 Requires machining on block.
23 Requires Bronze gear, thrust button & wear plate.
24 50-State legal on '93 & earlier S.B. Chevy 262-400 c.i. C.A.R.B. E.O. #D-279-4.
25 Steel welded core available.
26 50-State legal on '93 & earlier S.B. Chevy 262-400 c.i. C.A.R.B. E.O. #D-279-6.
27 For O.E equipped hydraulic rollers only.
28 Kits available. Contact CAM HELPD at 800-999-0853.
29 Lifters only.
30 LT1 and LT4 requires part #3206.
31 10i retainers use 611-16 locks.
32 Nonstandard lobe layout due to valve arrangement.
33 .180" offset on intake.
34 Truck engines have .400" taller block.
35 Mark V and Mark VI heads must use kit w/studs.
36 50-state legal for '93 & earlier B.B. V8, 396-454 c.i. C.A.R.B. E.O. #D-279-4.
37 K-Kit includes pushrods and cam button.
38 Tall block engines require part #4005.
39 For '81 engines originally equipped with hyd. lifters.
40 Fits '81-'87 models only.
41 Includes special shafts & spacers.
42 Special 10i 4 Groove Lock. Single Groove use part #612-16.
43 Offset Shafts available.
44 Includes special shafts & spacers.
45 1/2 set 2 groove; 1/2 set 4 groove.
46 413-440 c.i. use part #7432.
47 For 413-440 c.i. only, 383-400 use part #RP1421A-16.
48 Special 10i locks, 1/2 2 groove, 1/2 set 4 groove. Single groove use part #612-16.
49 Wear plates recommended.
50 3-Bolt core available. Change first 2 digits of part # to 23 .
51 May require cylinder head matching.
52 Other lifters & pushrod heights available.
53 Offset lifters available. Also for rev. kit applications.
54 Use part # 4028 with offset lifters.
55 These cams can only be used in 289-302 engines. NOT 302 H.O. blocks due to base circle size.
56 Requires Lifter installation kit #31-1000 for retro fit applications.
57 Pre-"72 engines use part #3220.
58 K-Kit also includes pushrod & lifter installation kit #31-1000 for retro fit applications.
59 Many year models.60 Part #4504 studs required for '78-present.
61 '62-'69 use part # 7632-16.
62 Adjustable valve train required.
63 Pre-'68 use part # 831-16.
64 Magnum Roller Tip RockersD required.
65 Requires lifter installation kit # 35-1001 to install 851-16 lifters in blocks with O.E hyd. cams.
66 Kit includes installation kit #35-1001.
67 For 1.71:1 ratio use #RP1450-16.
68 For 1.71:1 ratio use #RP1453-16.
69 For 1.71:1 ratio use #RPM1453-16.
70 K-Kit for hyd. rollers also includes pushrod & lifter installationkit #31-1000 for retro fit applications.
71 These cam can only be used in actual 351W engines due to base circle size.
72 Fits only certain heads.
73 Most '79-'82 engines have single groove valves, use part #601-16 locks & #743-16 retainers.
74 For engines with single-groove valves, use #611-16 locks.
75 Cams can only be used in 351C, 351M-400M due to base circle size.
76 K-Kit includes pushrods for 351C.
77 K-Kit DOES NOT include pushrods for 351M-400M.
78 Includes Lifter installation kit #31-1000 for retro fit applications.
79 Fits only 302/351C Boss & SVO heads.
80 For engines with multi-groove valves, use part #624-16 locks. CAN NOT be used with lash caps.
81 Includes special rockers & shafts part #1047-2.
82 Includes special shafts.
83 Use screw in studs & guide plates. May require longer pushrods.
84 Pedestal mount.
85 Olds 400-455 use part #7582-16.
86 Olds 260-403 use part #7842-16.
87 For 260-403 engines only. 455 use kit #1442.
88 High EnergyP Rocker Arms.
89 265-301 use part # 864-16.
90 Special Design (NOT a Chevy part).
91 1.65:1 ratio available.
92 Fits only 350-455.
93 PacaloyD spring.
94 Kit includes cam, lifters, retainers, locks, seals, timing set, valve springs, pushrods, and some kits include lifter guides, plates and bolts.
95 Includes 3 cam bolts, thrust bearing & washers, special adjustable cam timing system, 2 machined steel gears and true roller race chain.
96 Lightweight Titanium Retainer.
97 .065" x 3/8" Diameter Hi-Tech, check for proper length.
98 50 State Legal for '87 & earlier carbureted V-8 Small Block Chevy 262-400 C.A.R.B. E.O. #D-279-3, D-279-5, D-279-6.
99 Requires hardened guide plate.
1A Camshaft retaining plate #3120TB recommended.
2A Pushrod length may vary depending on combination, check for proper length.
3A Kit contains springs, retainers and valve locks.
4A Cannot be used with lash caps.
5A Engines with self-aligning rocker arms must use part #1417-16 or 1317-16.
6A Engines with self-aligning rocker arms must use part #RP1417-16.
7A These specs are measured with a stock length valve and .010"lash between the cam and follower.
8A These specs are measured with a .060" longer than stock valve and .010" lash between the cam and follower.
9A Does not fit 250 c.i. engines.
1B O.E. style pedestal mount roller rockers available. Part #1052-16 for 1.6:1 ratio. Part #1054-16 for 1.7:1 ratio.
2B For 351M and 400M engines, use part #7824-16 pushrods on retro-fit cams.
3B Lightweight HTL lifter available.
4B If equipped with studs and guide plates use part #1442-16.
5B Use part # 843-16 to oil through pushrods.
6B K-Kit includes 4514-KIT rocker arm adjusting kit and pushrods.
7B Requires part # 4514-KIT.
8B Engines with self-aligning rocker arms must use part #1417-12 or 1317-16.
9B Requires 7/16Ó rocker arm studs.
1C Works with two-piece fuel pump eccentric.
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