Hydraulic Roller - Xtreme Marine: Largest for inboard/outboard, very good mid-range.; 270/276 Advertised Duration, 218/224 Duration .050", .495"/.503" Lift, 112 Lobe Separation; 1200 to 5200 RPM range; Valve spring upgrade required; Must use bronze tip fuel pump pushrod when using high pressure or high volume pump
265, 283, 307, 302, 305, 327, 350, 383, 400, 427, L46, L48, L65, LM1, LT-1, L82, L81, LS9, L83, L98, L05, LG3, LG4, LT1, LT4, Camaro, Corvette, Chevelle, Stingray, Silverado, C10, Firebird, Chevrolet, Chevy, Small Block Chevy, Caprice, Malibu, Impala, Nova, 355, GEN1, Monte Carlo, S10
COMP Cams Xtreme Marine XM 270HR-12 Camshaft for Small Block Chevrolet Engines Originally Equipped with Hydraulic Roller Cams
Fits '87+ GEN 1 Chevrolet 305-350 Small Blocks w/ Factory Roller Camshafts (Not LT-1/LS1 etc)
Hydraulic Roller - Xtreme Marine: Largest for inboard/outboard, very good mid-range.
Xtreme Marine 218/224 Hydraulic Roller Cam for OE Roller SBC
Largest for inboard/outboard, very good mid-range.
XMarine 218/224 H-Rolr Cam OE Roller SBC
COMP Cams Camshaft CS XM 270HR-12
CamShaft, CS XM 270HR-12
XMar 218/224 HRlrSBC
Engine Camshaft
None