ERSON CAMS 1999 CATALOG TABLE OF CONTENTS First to the Finish Line . 3-4 Chevrolet 90° V6 1987-91 Ford Small Block V8 262/4.3L CID Engines . 16 1962-84–221, 260, 289, 302 CID Engines Warranty and Sales Policy . 5 Except 1982-Later– 302 HO Engines . 46 Chevrolet 90° V6 Oddfire 1985-Later–302 CID/5.0L Engines AMC Technical Information Common Crank Pin Engines . 16 Except 302 HO Engines. 47 1966-91–V8 290,304,343,360,390,401 Engines . 6 1962-84–221, 260, 289, 302 CID Engines Chevrolet Small Block V8 Except 1982-Later–302 HO Engines . 48-49 Chevrolet Technical Information 1957-86–262-400 CID Engines 1987-94–305-350 CID 1985-Later–302/5.0L HO Engines Introduction to Chevrolet . 12-14 Non-Hydraulic Roller Engines . 17 1994-Later–351W/5.8L Engines . 51 1969-83–351W/5.8L Engines Chrysler Technical Information 1957-86–262-400 CID Engines 1982-84–302/5.0L Engines . 52 Introduction to Chrysler. 31 1987-97–305-350 CID Hydraulic Flat Tappet Engines . 18-19 Ford V8 1968-93 Ford Technical Information 1987-97 305/5.0L, 350/5.7L; 1968-93–351W/5.8L Engines 1982-84–302/5.0L HO Engines. 50 Introduction to Ford . 41-42 1992-95 5.7L LT1 Engines . 19 1957-97–262-400 CID Engines. 20-21 Ford V8 1969-93–351W/5.8L Engines Camshaft Special 262-400 CID Engines . 22-25 1982-84–302/5.0L Engines . 53 Grinding Information Chevrolet Big Block V8 351 Cleveland Engines 396-502 CID Engines. 26-27 & 29-30 1970-82–351C, Boss 351C, 351M, 400M Engines . 56 . 72-73 1967-90–Mark IV 396, 402, 427, 454/7.4L Engines 429-460 CID Engines . 59-61 1991-95–Gen V 454/7.4L, 502/8.2L Engines . 28 Ford V8 1970-82 Chrysler/Dodge/Plymouth 1960-80 Boss 351C, 351C, 351M, 400M CID Engines . 54 170, 198, 225 CID 6-cylinder Engines . 32 Boss 351C, 351C/M, 400M Engines . 55 Chrysler “A” Ford FE 1963-76 CAMSHAFT PROFILES 1964-86–273, 340, 360 CID Engines 352, 360, 390, 406, 410, 427, 428 CID Engines . 57 1967-85–318 CID Engines . 33 Ford V8 FE 1963-76 1964-92–273, 340, 360 CID Engines 352, 360, 390, 406, 427, 428 CID Engines . 58 AMC/Jeep® Inline 6-Cylinder 1964-97 1967-91–318 CID Engines . 34 199-258 CID Engines . 7 Holden V8 Chrysler/Dodge/Plymouth 252-308 CID Engines . 62 AMC V8 1966-91 1964-92–273, 340, 360 CID “A” Engines 290-401 CID Engines . 8 1967-91–318 CID”A” Engines. 35 International Harvester 304, 345, 392 CID Engines . 62 Buick/Jeep® V6 1975-77 361,383,400 CID “B” Engines 413, 426W, 440 CID “RB” Engines. 36 231 CID Dauntless Oddfire Engines. 9 Nissan 240Z, 260Z,280Z 1975-76 350, 361, 383, 400 CID “B” Engines 6-cylinder S.O.C.H. – 2393cc (L24), Buick V6 19771/2-88 413, 426W 440 CID “RB” Engines . 37-38 2565cc (L26), 2753cc (L28E) Engines . 63 196,231,252 CID Evenfire Engines . 9 426 Hemi 45° Block Engines. 39 Oldsmobile 1967-84 Buick, V8 “Early” 1961-67/Rover 1968-94 426 Hemi 48° Standard Core Engines . 40 260, 307, 350, 400, 403, 425, 455 CID Engines . 64 1961-67–Buick 215, 300, 340 CID Engines 1968-94–Rover 215/3.5L, 426 Hemi, Lg. Core, 2.215" Journal 48° Engines. 40 Oldsmobile V8 1967-84 240/3.9L, 256/4.2L Engines . 10 260, 307, 350, 400, 425, 455 CID Engines . 65 Chrysler Buick 1968-80 392 CID Early Hemi, 417 Donovan Engines . 39 GM/Pontiac 1979-89 350 CID, “H”, “J” Series Engines. 10 151 CID (2.5L) Engines Ford 1971-74 with Cross Flow Cylinder Head . 66 Buick 1967-76 2000cc/2.0L OHC, 4-cylinder Engines . 43 400, 430, 455 CID Engines . 11 Pontiac V8 1955-81 Ford 1974-87 265-455 CID Engines . 67-68 2300cc/2.3L OHC, 4-cylinder Engines . 43 Cadillac 1968-84 Toyota 1970-82 368, 425, 472, 500 CID Engines . 11 Ford 1962-83 2T, 2TC, 3TC 1588cc, 144,170,200,250 CID Engines . 44 1770cc 4-cylinder Hemi Engines . 69 Chevrolet Inline 6-cylinder 194, 230, 250 CID Engines . 15 Ford 1965-95 Toyota 1974-92 Inline 6-cylinder 292 CID Truck Engines . 15 240-300 CID 6-cylinder Engines, Gear Driven . 44 20R, 22R, 22RE 4-cylinder S.O.H.C. Engines . 69 Chevrolet 90° V6 1978-84 Ford V6 1983-86 Volkswagen 1961-Later 2600cc, 2800cc V6 Engines . 45 200-229 CID (3.8L) Engines . 15 . 70 Chevrolet 90° V6 1985-86 Ford V8 “Y Block” VW Rabbit, Scirocco, Jetta 1974-89 272, 292, 312 Engines . 45 1457/1788cc 1.8L Water Cooled Engines . 71 262/4.3L CID Engines . 16 ERSON CAMS 1999 CATALOG TABLE OF CONTENTS Case-Hardened Pushrods . 77 Speed and Gear Ratio Computer (Dream Wheel). 82 VALVETRAIN COMPONENTS Pushrod Applications . 78 Degree Wheel . 82 Pushrods Tips . 78 Billet-Aluminum Rocker Arms. 83-84 Integral Jam-Nut, Machined-Steel, Screw-In Studs . 74 Gear Drives . 79 Forged Aluminum-Roller Rocker Arms . 85-86 Screw-In Studs . 74 Ultra-Roller Timing Chains . 79 Roller Tip Stamped Steel Long Slot Rockers. 86 Positive-Locking Nuts . 74 Bronze Distributor Drive Gears. 79 Chrysler Billet-Roller Rocker Arms . 87 P.C. All-Teflon, Valve Stem Seals. 74 Replacement Parts Roller Rockers for Ford FE V8 . 87 Hardened Valve Stem Lash Caps . 74 Valve Springs & Pushrods . 79 Aluminum Roller Rocker Conversion for Dodge Magnum . 88 Valve Spring Shims . 75 Chrome-Silicone Valve Springs . 80 Aluminum Roller Rocker Conversion Offset Camshaft Timing Bushings . 75 Tri-Plex Valve Springs . 80 for Oldsmobile V8 . 88 Super Duty Cam Bolts . 75 Valve Spring Specs . 80 Chevrolet V8 Aluminum-Thrust Bumpers . 75 Precision Manufactured Guide Plates. 81 Camshaft Installation Kits . 89-94 Chrome-Moly Valve Spring Retainers . 76 High-Performance Roller Tappets. 81 Titanium Valve Spring Retainers. 76 Clip-On Rocker Arm Splash Eliminators . 81 Lobe Designs . 95-99 Valve Locks . 76 High-Performance Flat Tappets . 81 Chrome-Moly Pushrods . 77 Moly Lube . 81 Cam Sense. 100-112 ERSON CAMS FIRST TO THE FINISH LINE! Over 80% of the camshafts now sold in the high performance aftermarket are for late model, low compression engines. Traditional high performance camshafts are totally unsuited for these engines. They kill low-end power, waste fuel and idle poorly. Erson Cams has devoted thousands of hours to developing and testing camshafts specifically for the low compression engines and low octane fuels of the 1990s. These camshaft designs feature minimum duration with maximum opening velocity and lift. Valve timing is altered to produce high cylinder pressure and to keep heat in the combustion chamber. Intake opening and exhaust closing points are tailored to eliminate fuel loss during the overlap period. The following camshaft series incorporates all the performance building, fuel saving technology developed in our testing programs and are available only from Erson Cams. THE RV CAM THE TQ CAM The RV camshaft was originated by Erson Cams in 1972. Originally Erson TQ Cams have undergone extensive testing during the past two designed for use in heavy vehicle and towing applications, these decades and offer a big potential for performance improvement in a camshafts have proven to be the perfect answer for late model, low well set-up low compression engine. compression engines, and are now used primarily in passenger cars, TQ Cams feature computer designed profiles incorporating short, fast station wagons and light utility vehicles. opening ramps and maximum open velocity. Closing velocity is lower RV Cams are suitable for use in otherwise stock low compression than opening and the closing ramp is slower and longer. This type engines. Usable power is increased between 1500 and 5000 design allows the engine to deliver good RPM and great power, without (depending on application). These camshafts have a smooth idle, sacrificing idle characteristics, low-end power and throttle response. excellent throttle response and acceleration, plus good fuel efficiency. Lobe placement and camshaft phasing have been altered to maintain For the best possible performance, the engine should be equipped with high cylinder pressure with low compression ratios. headers, a free-flow exhaust system, a small 4-barrel carburetor and a TQ Cams maintain good low and mid-range power and good idle re-curved ignition system. characteristics, while producing good, usable power up to 5500/6000 These camshafts are ideal for sedans, station wagons, pick-ups, vans RPM, depending on engine displacement and other performance and motor homes. Suitable for over-the-road driving, trailer towing, etc. equipment installed. Idle is smooth and standard gearing is satisfactory. TQ Cams should be used in engines with headers, a free-flow exhaust RV Cams are available for all late model American passenger car and system and a good intake system with a small, 4-barrel carburetor. light truck engines in hydraulic or mechanical designs. Distributor mechanical advance should be shortened to provide more low RPM advance. Standard gearing can be retained, but a lower gear ratio is beneficial to take advantage of the higher RPM potential. THE M/P CAM TQ Cams are available for all late model American passenger car and light truck engines for use with hydraulic or mechanical tappets. The M/P Cam has sufficient duration and special valve timing to bleed off enough compression at low RPM to prevent pre-ignition, plus deliver good mid-range power. It will also pull strong up to 5500/6000 THE HIGH-FLOW CAM RPM.