1968 GMC G25 Camshafts

HYDRAULIC – Xtreme Energy: Excellent response, good mid-range, noticeable idle.

Product Features:

• HYDRAULIC – Xtreme Energy: Excellent response, good mid-range, noticeable idle.
• 262/270 Advertised Duration, 218/224 Duration @ .050″, .462″/.469″ Lift, 110 Lobe Separation
• Valve spring upgrade required
• Best performance with aftermarket intake manifolds, headers, lower gear ratios etc.

HYDRAULIC – Magnum: High performance. Biggest cam with stock converter but better with 2000+ stall. Use lower gears. Mild rough idle.

Product Features:

• HYDRAULIC – Magnum: High performance. Biggest cam with stock converter but better with 2000+ stall. Use lower gears. Mild rough idle.
• 270/270 Advertised Duration, 224/224 Duration @ .050″, .470″/.470″ Lift, 110 Lobe Separation
• Valve spring upgrade required
• Can be used with mild ratio rocker arms and traditional performance valve springs.

Designed to deliver an aggressive, hard-hitting exhaust note at idle, the Thumpr camshaft series from COMP Cams also delivers excellent horsepower gains and a broad torque curve. A perfect choice for muscle cars and street rods, the Thumpr series’ early i

Product Features:

• Early intake valve opening and long exhaust duration create optimum overlap for powerful, hard-hitting exhaust note.
• Best with aftermarket converters and more rear gear.
• Three unique cam designs for each application that deliver excellent horsepower gains and broad torque curve; perfect choice for muscle cars and street rods.

Designed to deliver an aggressive, hard-hitting exhaust note at idle, the Thumpr camshaft series from COMP Cams also delivers excellent horsepower gains and a broad torque curve. A perfect choice for muscle cars and street rods.

Product Features:

• Early intake valve opening and long exhaust duration create optimum overlap for powerful, hard-hitting exhaust note.
• Best with aftermarket converters and more rear gear.
• Three unique cam designs for each application that deliver excellent horsepower gains and broad torque curve; perfect choice for muscle cars and street rods.

Edelbrock Rollin’ Thunder Camshaft No. 2208 is designed for 265-350 V8 Chevy engines from 1957-86 and produces optimum torque from the low-end to the mid-range. Rollin’ Thunder camshafts should be matched with Performer manifolds for vehicles operating from off-idle to 5500 rpm. They are smooth idling cams for daily drivers, trucks, vans, RVs and 4x4s. You can expect a major improvement in throttle response and torque. In the manifold section you’ll find torque graphs showing the power gains from Performer manifolds and Performer-Plus cams. All camshafts include flat tappet lifters (except for cams designed for use with stock roller lifters), assembly lube and instructions. This cam produced 363HP and 402 Ft Lbs of Torque when paired with Performer EPS intake manifold No. 2716, Performer Carb No. 1407, Performer E-Tec cylinder heads No. 60975 and Edelbrock roller tappet lifter set No. 97423. Must be used with a thrust button. Camshaft specifications: – Intake duration: 212 Degrees – Exhaust duration: 222 Degrees – Intake lift: .462″ – Exhaust lift: .479″ – Lobe separation: 112 Degree – Intake Center Line: 107 Degree – Vacuum: 16″

CAMSHAFTS

High Energy 212/212 Hydraulic Flat Cam for Chevrolet 194-250 V6

High Energy 206/206 Hydraulic Flat Cam for Chevrolet 194-250 V6

Magnum 218/218 Hydraulic Flat Cam for Chevrolet 194-250 V6

HYDRAULIC – Magnum: Pro Street/bracket, limited street driving. Intake, gears, 3500+ stall. Racy idle. 10.5:1 compression. OR Drag Race: 3500-4000 stall or 4 speed with 11:1+ compression.

Product Features:

• HYDRAULIC – Magnum: Pro Street/bracket, limited street driving. Intake, gears, 3500+ stall. Racy idle. 10.5:1 compression. OR Drag Race: 3500-4000 stall or 4 speed with 11:1+ compression.
• 305/305 Advertised Duration, 253/253 Duration @ .050″, .525″/.525″ Lift, 110 Lobe Separation
• Valve spring upgrade required

HYDRAULIC – Magnum: Street/strip special, 3000 stall, headers, gears, 9.5:1+ compression. Very rough idle. OR Drag Race: 3000+ stall in heavy car with 10:1+ compression.

Product Features:

• HYDRAULIC – Magnum: Street/strip special, 3000 stall, headers, gears, 9.5:1+ compression. Very rough idle. OR Drag Race: 3000+ stall in heavy car with 10:1+ compression.
• 292/292 Advertised Duration, 244/244 Duration @ .050″, .501″/.501″ Lift, 110 Lobe Separation
• Valve spring upgrade required
• Can be used with mild ratio rocker arms and traditional performance valve springs.

HYDRAULIC – Xtreme Energy: Pro Street/bracket, needs good intake, headers, gear and 3300+ stall.

Product Features:

• HYDRAULIC: Pro Street/bracket, needs good intake, headers, gear & 3300+ stall.
• 294/306 Advertised Duration, 250/256 Duration @ .050″, .519″/.523″ Lift, 110 Lobe Separation
• Valve spring upgrade required
• Best performance with aftermarket intake manifolds, headers, lower gear ratios etc.

HYDRAULIC – High Energy: Vans, pickups, 4WD and towing, in 350c.i., good idle, strong mid-range torque. OR High Energy Marine: Single or dual engine with inboard/outboard drive for ski and economy.

Product Features:

• HYDRAULIC – High Energy: Vans, pickups, 4WD and towing, in 350c.i., good idle, strong mid-range torque. OR High Energy Marine: Single or dual engine with inboard/outboard drive for ski and economy.
• 260/260 Advertised Duration, 212/212 Duration @ .050″, .440″/.440″ Lift, 110 Lobe Separation
• Work well with mainly stock components such as rockers, manifolds, heads, compression, torque converters and gears.