Edelbrock Rollin Thunder Hydraulic Roller Camshaft - Lift 0.625 / 0.639 in - Duration 236 / 245 - 112 LSA - Big Block Chevy 2261 PTT-HM-MT-6B Stage 1 Heads

Stage 1 Heads

makes set-up and indexing quick and easyPlug-and-play with Holley EFI and compatible with other aftermarket EFI systems requiring a cam sync signalCNC billet housing with black anodized cap provide good looks and excellent durabilityChevrolet version is supplied with a equivalent Melonized distributor gear and adjustable slip collar for blocks with a non-standard deck height2-3/4” of adjustment for different deck heightsO-ring seals can be added to modified blocks to improve oil pressure controlSpecial oil tract improves lubrication to the distributor and cam gearShaft is guided by a sealed ball bearing and an extra long sintered bushing

MagnaFlow Universal Catalytic Converters form the basic building blocks for a comprehensive line of direct-fit applications

625 in ID Spring

Absolutely the most powerful HEI Module available

Edelbrock Rollin Thunder Hydraulic Roller Camshaft - Lift 0.625 / 0.639 in - Duration 236 / 245 - 112 LSA - Big Block Chevy 2261 PTT-HM-MT-6B Stage 1 HeadsEdelbrock Rollin' Thunder camshafts are designed to improve horsepower and torque, produce a great sounding performance idle and provide excellent vacuum at idle to support power accessories. Rollin' Thunder camshafts feature more aggressive lift profiles than possible with conventional flat tappet hydraulic cams, without excessive valve overlap that can compromise low rpm drivability; reduced friction provided by roller tappets makes this combination