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Comp Cams 12-243-3 Xtreme 4 X 4 Camshaft RPM: 1000-7000
Part No. 12-243-3

This is a direct fit, vehicle specific part.
Please verify this fits your vehicle.

vehicle fitment information
Attribute Size / Style
Rpm Range 1000-7000
Usage Street/Performance
shipping
FREE
your price
$138.64
in stock
Quantity
Our Low Price Guarantee
  • Xtreme 4 X 4, Camshaft, Hyd. Flat Tappet, 1800-6000rpm, Adv. Dur. 270 Int./278 Exh., Valve Lift .480 Int./.498 Exh., Lobe Angle 111 deg.
  • 1 Year Limited Warranty
  • Xtreme 4 X 4; Camshaft
  • RPM Range: 1000-7000
  • Usage: Street/Performance
  • Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
Comp Cams 7812-16 High Energy Length : 7.794 Push Rods

High Energy Push Rods, 5/16 in. Dia., 7.794 in. Length, 16 pc.

  • 1 Year Limited Warranty
  • Mate Perfectly w/ High Energy Or Magnum Rockers
  • 50-State Legal

This is a direct fit, vehicle specific part.

shipping
$9.95 
your price
$31.50
in stock
Qty
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Comp Cams 787-16 Valve Spring Retainer Kits

Steel Valve Spring Retainers, 7 deg. Lock Angle, Stock Valve Stem Size, Valve Spring Dia. 1.290 in., 0.640 in. x 1.030 in., Non LS1 Eng., 16 pc.

  • 1 Year Limited Warranty
  • 4140 Chromemoly
  • 50-State Legal

This is a direct fit, vehicle specific part.

shipping
$9.95 
your price
$55.69
in stock
Qty
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Comp Cams 648-16 Valve Locks Valve Spring Retainer Kit

Valve Locks, Valve Spring Retainer Lock, 7 deg. Lock Angle, 11/32 in. Valve Stem Size, Machined Steel, Single Groove, 16 pc.

  • 1 Year Limited Warranty
  • Inside Tang
  • 50-State Legal

This is a direct fit, vehicle specific part.

shipping
$9.95 
your price
$24.19
in stock
Qty
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Comp Cams 601-16 Valve Locks Valve Spring Retainer Kit

Valve Locks, Valve Spring Retainer Lock, 7 deg. Lock Angle, Valve Stem Size 11/32 in., Machined Steel, Single Groove, 16 pc.

  • 1 Year Limited Warranty
  • Inside Tang
  • 50-State Legal

This is a direct fit, vehicle specific part.

shipping
$9.95 
your price
$5.53
in stock
Qty
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Comp Cams 858-16 Pro Magnum Hydraulic Set Lifter Set

Pro Magnum Hydraulic, Lifter Set, Chevy V8, 16 pc.

  • 1 Year Limited Warranty
  • Designed To Perform At Higher Engine Speeds
  • Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle

This is a direct fit, vehicle specific part.

shipping
$9.95 
your price
$99.75
in stock
Qty
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Comp Cams 812-16 High Energy Hydraulic Lifter Set

High Energy Hydraulic, Lifter Set, Chevrolet, V8, 16 pc.

  • 1 Year Limited Warranty
  • Eliminates Excessive Oiling At High Speeds
  • Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle

This is a direct fit, vehicle specific part.

shipping
$9.95 
your price
$86.10
in stock
Qty
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Comp Cams 7372-16 Magnum Length : 7.8 Push Rods

Magnum Push Rods, 5/16 in. Dia., 7.8 in. Length , 16 pc.

  • 1 Year Limited Warranty
  • Affordable Solution
  • 50-State Legal

This is a direct fit, vehicle specific part.

shipping
$9.95 
your price
$105.00
in stock
Qty
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Comp Cams 742-16 Valve Spring Retainer Kits

Steel Valve Spring Retainers, 7 deg. Lock Angle, Valve Spring Dia. 1.25 in., .65 in. x .87 in. x 1.23 in., 16 pc.

  • 1 Year Limited Warranty
  • 4140 Chromemoly
  • 50-State Legal
  • Valve Spring Oil Shield Available

This is a direct fit, vehicle specific part.

shipping
$9.95 
your price
$54.64
in stock
Qty
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Comp Cams 981-16 Single Outer Valve Springs

Single Outer, Valve Springs, 1.254 Outer w/Damper, 16 pc.

  • 1 Year Limited Warranty
  • Single Outer
  • 50-State Legal
  • Requires Machining On Cylinder Heads

This is a direct fit, vehicle specific part.

shipping
$9.95 
your price
$70.35
in stock
Qty
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Comp Cams 26981-16 Beehive Perf Street Valve Springs

Beehive, Performance Street Valve Springs, Top OD 1.065 in./Bottom OD 1.240 in., Top ID 0.650 in./Bottom ID 0.742 in., 16 pc.

  • 1 Year Limited Warranty
  • CNC Machined

This is a direct fit, vehicle specific part.

shipping
FREE
your price
$157.49
in stock
Qty
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Comp Cams 1412-16 Magnum Rockers Rocker Arms

Magnum Roller Rockers, Rocker Arms, Rocker Stud 3/8 in., Ratio 1.52, For Use w/Hyd. Flat Tappet Cams, 16 pc.

  • 1 Year Limited Warranty
  • 8620 Chromemoly Steel
  • 50-State Legal 1993-Earlier Chevy C.A.R.B. E.O. D-279-4
  • Engines w/Self-Aligning Rocker Arms Must Use PN[1417-16/1317-16]
  • Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle
  • Will Not Replace Late Model Rail Rocker

This is a direct fit, vehicle specific part.

shipping
FREE
your price
$171.19
in stock
Qty
Our Low Price Guarantee
Comp Cams 159 Engine Break-In Oil Additive

Engine Break-In Oil Additive, 12 Ounce Bottle

  • Clings To Camshaft And Lifters
  • Just Add To Engine Oil

This is a universal fit product and may require customization to fit your vehicle.

shipping
$9.95 
your price
$15.79
in stock
Qty
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Comp Cams 1601-16 Ultra Pro Magnum Rocker Arms

Ultra Pro Magnum, Rocker Arm, Stud 3/8 in. Ratio 1.52 in., Chevy Small Block 265-400 cid, 16 pc.

  • 29 Percent Stronger Than Pro Magnum
  • 8650 Chromemoly Steel

This is a direct fit, vehicle specific part.

shipping
FREE
your price
$314.41
in stock
Qty
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Comp Cams 2100 Chevy (262-400) Performance Timing Set

Magnum Double Roller, Timing Set, Chevrolet

  • 1 Year Limited Warranty
  • 4 Degree Incremental Adjusting
  • 50-State Legal
  • Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle

This is a direct fit, vehicle specific part.

shipping
$9.95 
your price
$29.19
in stock
Qty
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Comp Cams 3200 Chevy (262-400) Performance Timing Set

High Energy, Timing Set, Chevrolet

  • 1 Year Limited Warranty
  • Exceptional Durability
  • 50-State Legal

This is a direct fit, vehicle specific part.

shipping
$9.95 
your price
$31.54
in stock
Qty
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Comp Cams 501-16 O-Ring Valve Stem Oil Seals

Valve Stem Oil Seals, O-Ring, Guide Stock, Valve Size 11/32 in., 16 pc.

  • 1 Year Limited Warranty
  • O-Ring
  • 50-State Legal

This is a direct fit, vehicle specific part.

shipping
$9.95 
your price
$5.25
in stock
Qty
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YearsMakeModelSubModelEngineFuel
1969-1974CHEVROLETBLAZER5.0L / 307 C.I.D.-5.7L / 350 C.I.D.GAS
1975-1986CHEVROLETBLAZER K55.0L / 305 C.I.D.-6.6L / 400 C.I.D.GAS
1961-1986CHEVROLETC10 PICKUP4.6L / 283 C.I.D.-6.6L / 400 C.I.D.GAS
1978-1980CHEVROLETC10 PICKUPBIG TEN5.0L / 305 C.I.D.-6.6L / 400 C.I.D.GAS
1968-1986CHEVROLETC10 SUBURBAN5.0L / 305 C.I.D.-5.7L / 350 C.I.D.GAS
1961-1986CHEVROLETC20 PICKUP4.6L / 283 C.I.D.-6.6L / 400 C.I.D.GAS
1968-1986CHEVROLETC20 SUBURBAN5.0L / 305 C.I.D.-6.6L / 400 C.I.D.GAS
1961-1986CHEVROLETC30 PICKUP4.6L / 283 C.I.D.-6.6L / 400 C.I.D.GAS
1961-1986CHEVROLETK10 PICKUP4.6L / 283 C.I.D.-6.6L / 400 C.I.D.GAS
1968-1986CHEVROLETK10 SUBURBAN5.0L / 305 C.I.D.-6.6L / 400 C.I.D.GAS
1961-1986CHEVROLETK20 PICKUP4.6L / 283 C.I.D.-6.6L / 400 C.I.D.GAS
1968-1986CHEVROLETK20 SUBURBAN5.0L / 305 C.I.D.-6.6L / 400 C.I.D.GAS
1968-1986CHEVROLETK30 PICKUP5.0L / 307 C.I.D.-6.6L / 400 C.I.D.GAS
1955-1957CHEVROLETONE-FIFTY SERIES4.3L / 265 C.I.D.-4.6L / 283 C.I.D.GAS
1961-1967CHEVROLETSUBURBAN4.6L / 283 C.I.D.-5.4L / 327 C.I.D.GAS
1955-1960CHEVROLETTRUCK4.3L / 265 C.I.D.-4.6L / 283 C.I.D.GAS
1975-1978GMCC15 PICKUP5.0L / 305 C.I.D.-6.6L / 400 C.I.D.GAS
1977-1978GMCC15 PICKUPBIG TEN5.0L / 305 C.I.D.-5.7L / 350 C.I.D.GAS
1975-1978GMCC15 SUBURBAN5.0L / 305 C.I.D.-5.7L / 350 C.I.D.GAS
1967-1983GMCC15/C1500 PICKUP4.6L / 283 C.I.D.-6.6L / 400 C.I.D.GAS
1979-1980GMCC15/C1500 PICKUPBIG TEN5.0L / 305 C.I.D.-5.7L / 350 C.I.D.GAS
1968-1974GMCC15/C1500 SUBURBAN5.0L / 307 C.I.D.-5.7L / 350 C.I.D.GAS
1980-1986GMCC1500 PICKUP5.0L / 305 C.I.D.-6.6L / 400 C.I.D.GAS
1980-1980GMCC1500 PICKUPBIG TEN5.7L / 350 C.I.D.-6.6L / 400 C.I.D.GAS
1979-1986GMCC1500 SUBURBAN5.0L / 305 C.I.D.-5.7L / 350 C.I.D.GAS
1975-1978GMCC25 SUBURBAN5.0L / 305 C.I.D.-6.6L / 400 C.I.D.GAS
1967-1978GMCC25/C2500 PICKUP4.6L / 283 C.I.D.-6.6L / 400 C.I.D.GAS
1968-1974GMCC25/C2500 SUBURBAN5.0L / 307 C.I.D.-5.7L / 350 C.I.D.GAS
1979-1986GMCC2500 PICKUP5.0L / 305 C.I.D.-6.6L / 400 C.I.D.GAS
1979-1986GMCC2500 SUBURBAN5.0L / 305 C.I.D.-6.6L / 400 C.I.D.GAS
1975-1978GMCC35 PICKUP5.0L / 305 C.I.D.-6.6L / 400 C.I.D.GAS
1967-1974GMCC35/C3500 PICKUP4.6L / 283 C.I.D.-5.7L / 350 C.I.D.GAS
1979-1986GMCC3500 PICKUP5.0L / 305 C.I.D.-6.6L / 400 C.I.D.GAS
1978-1986GMCCABALLERO5.0L / 305 C.I.D.-5.7L / 350 C.I.D.GAS
1967-1983GMCG15/G1500 VAN4.6L / 283 C.I.D.-5.7L / 350 C.I.D.GAS
1968-1986GMCG15/G1500 VANRALLY5.0L / 305 C.I.D.-6.6L / 400 C.I.D.GAS
1968-1986GMCG15/G1500 VANVANDURA5.0L / 305 C.I.D.-6.6L / 400 C.I.D.GAS
1967-1972GMCG25/G2500 VAN4.6L / 283 C.I.D.-5.7L / 350 C.I.D.GAS
1968-1986GMCG25/G2500 VANRALLY5.0L / 305 C.I.D.-6.6L / 400 C.I.D.GAS
1968-1986GMCG25/G2500 VANVANDURA5.0L / 305 C.I.D.-6.6L / 400 C.I.D.GAS
1967-1986GMCG35/G3500 VAN5.4L / 327 C.I.D.-6.6L / 400 C.I.D.GAS
1971-1986GMCG35/G3500 VANRALLY5.7L / 350 C.I.D.-6.6L / 400 C.I.D.GAS
1971-1986GMCG35/G3500 VANVANDURA5.0L / 305 C.I.D.-6.6L / 400 C.I.D.GAS
1970-1986GMCJIMMY5.0L / 305 C.I.D.-6.6L / 400 C.I.D.GAS
1975-1978GMCK15 PICKUP5.0L / 305 C.I.D.-6.6L / 400 C.I.D.GAS
1975-1978GMCK15 SUBURBAN5.0L / 305 C.I.D.-6.6L / 400 C.I.D.GAS
1967-1974GMCK15/K1500 PICKUP4.6L / 283 C.I.D.-5.7L / 350 C.I.D.GAS
1968-1974GMCK15/K1500 SUBURBAN5.0L / 307 C.I.D.-5.7L / 350 C.I.D.GAS
1979-1986GMCK1500 PICKUP5.0L / 305 C.I.D.-6.6L / 400 C.I.D.GAS
1979-1986GMCK1500 SUBURBAN5.0L / 305 C.I.D.-6.6L / 400 C.I.D.GAS
1975-1978GMCK25 PICKUP5.0L / 305 C.I.D.-6.6L / 400 C.I.D.GAS
1975-1978GMCK25 SUBURBAN5.0L / 305 C.I.D.-6.6L / 400 C.I.D.GAS
1967-1974GMCK25/K2500 PICKUP4.6L / 283 C.I.D.-5.7L / 350 C.I.D.GAS
1968-1974GMCK25/K2500 SUBURBAN5.0L / 307 C.I.D.-5.7L / 350 C.I.D.GAS
1979-1986GMCK2500 PICKUP5.7L / 350 C.I.D.-6.6L / 400 C.I.D.GAS
1979-1986GMCK2500 SUBURBAN5.7L / 350 C.I.D.-6.6L / 400 C.I.D.GAS
1977-1978GMCK35 PICKUP5.7L / 350 C.I.D.-6.6L / 400 C.I.D.GAS
1967-1974GMCK35/K3500 PICKUP5.0L / 307 C.I.D.-5.7L / 350 C.I.D.GAS
1979-1986GMCK3500 PICKUP5.7L / 350 C.I.D.-6.6L / 400 C.I.D.GAS
1971-1977GMCSPRINT5.0L / 305 C.I.D.-6.6L / 400 C.I.D.GAS
1972-1977GMCSPRINTCUSTOM5.0L / 305 C.I.D.-6.6L / 400 C.I.D.GAS
1967-1967GMCSUBURBAN5.4L / 327 C.I.D.-5.4L / 327 C.I.D.GAS
  • Back In Stock Notification

    Provide us with your email address and we'll let you know the moment this Competition Cams Xtreme 4 X 4 12-243-3 becomes available again.

  • Why don't we show the price?

    When a manufacturer implements a Minimum Advertised Price (MAP) policy, they create limits on the list price that retailers are allowed to advertise their products for. In line with our efforts to continually provide the lowest possible price, we've made it easier for you to inquire about our Exclusive Pricing on these MAP items.

  • Shipping Policy

    Free Ground Shipping
    Free FedEx ground shipping on all orders over $100. Free shipping to 48 Continental United States only. Orders under $100 will incur a FedEx ground shipping charge of $9.95.

    $9.95 Per Wheel/$25 Per Tire
    Each wheel will incur a $9.95 per wheel fee and each tire will incur a $25 per tire fee up to $99. You will be charged a maximum of $99 regardless of how many wheels and/or tires you purchase.

    $99 Truck Freight
    Oversized parts will incur a $99 truck freight charge that FedEx cannot provide standard ground shipping on.