Flat Tappet Solid / One Bolt Timing Gear. Drag strip. Single plane or 3x2bbl intake manifold. Maximum vehicle weight 3700lbs. (Big Blocks), 3400lbs. (Small Blocks) automatics with 4200rpm stall or 4000lbs 4 speed cars. HP ported Stage II or III cylinder heads. 200psi suggested cylinder pressure. 2" Big Block and 1 ¾" Small Block primary tube headers.
Note: The HTL series of camshafts give the maximum performance available with a flat tappet camshaft and .904" diameter lifter. When used with 1.6:1 ratio rockers they will achieve lift rates and performance of a roller tappet camshaft. Also similar to a roller camshaft, the HTL cams give very wide, flat power curves, but piston to valve clearances must be checked closely.
Caution: Minimum piston-to-valve clearance is .060" intake and .100" exhaust. If your clearance is not adequate, we have tooling to cut deeper valve reliefs.
Check our tooling section or call us.
Maximum lift with stock guide height is 0.450", more lift requires shortening the valve guides.
Spring Warning: Our camshafts are not comparable to other manufacturers and require special valve spring pressures to operate and live satisfactorily. We suggest that you only use our springs, most other springs will not work properly and may cause severe damage.
Related Parts:
1520S-16 1.6 Rocker Arm Kit w/Shafts 
3690 Extreme Pressure Oil Additive
5012 Solid Oil Thru Lifter
1322 11/32" Stem 1-Groove Valve Lock
1332 11/32" Stem 1-Groove Valve Lock
1324 3/8" Stem 1-Groove Valve Lock
1334 3/8" Stem 1-Groove Valve Lock
8342 Notching Tool Rental
1270 10º Valve Spring Retainer
1203 11/32" Valve Spring Retainer
1256 3/8" Valve Spring Retainer
1107 Double Valve Spring
3720 20w50 Race Synthetic Blend Oil
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