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K Kits vary in their contents, but generally contain a camshaft, a set of lifters, valve springs, retainers, locks, valve seals, timing set, assembly lubricant, decals and instructions. Choppy/thumping idle.Ģ27/241 Duration at. High performance street, stock converter ok, best with 2000+ converter and gears. Thanks to their quality construction, adjustability, pre-stretched chain and tight quality control tolerances, the COMP Cams Hi-Tech series timing sets are among the best available.įits OE Roller Camshaft Chevrolet 305-350 Small Block and 4.3L V6įits '78-'85 Chevrolet V6 and 265-400 Small Block Chevrolet Race Ready - Hi-Tech Roller Race Timing Sets are ready to handle the high load race conditions. We ensure that all sets are quality checked and held to the tightest tolerances in the industry for "run-out".

Tight Tolerances - Hi-Tech Roller Race Timing Sets are all dynamically balanced before they get to our customers. Plus, the chains are available separately!

The Best Chain - Pre-stretched from the factory then heat-treated, this true double roller chain is designed to handle street and race applications without loosening up.With a heavy-duty large pin design, our chains ensure timing accuracy for the life of your engine. This adjustability is a must for anyone who degrees in their camshafts. The middle keyway installs the camshaft with zero degrees of advance, while the other two allow for 4 degrees advance or retard.

The camshaft gear is constructed from cast iron, while the crankshaft sprocket is built from induction hardened billet steel.Īdjustable - Designed to help ensure the best performance, Hi-Tech Roller Race Timing Sets feature three keyways on the crankshaft sprocket. Premium Quality Gears - COMP Cams Hi-Tech Roller Race Timing Sets are built using high end materials.