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$1,241.95
COMP Cams MK54-703-11 Thumpr Master Cam Kit, LS GEN IV, Stage 2
COMP Cams MK54-703-11 Thumpr Master Cam Kit, LS GEN IV, Stage 2

COMP Cams MK54-703-11 Thumpr Master Cam Kit, LS GEN IV, Stage 2

L20 Chevy LS V8, LMG Chevy LS V8, LY2 Chevy LS V8, LY5 Chevy LS V8, LY6 Chevy LS V8

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COMP Cams MK54-703-11 Thumpr Master Cam Kit, LS GEN IV, Stage 2
COMP Cams MK54-703-11 Thumpr Master Cam Kit, LS GEN IV, Stage 2
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We estimate this item will ship on or before September 23rd.
Part # 282MK5470311
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Details

Camshaft Type:
Hydraulic Roller Tappet
Intake Duration:
282
Exhaust Duration:
299
RPM Range:
1800 to 6500
Lobe Separation:
113 °
Intake Duration (.050" Lift):
227
Exhaust Duration (.050" Lift):
237
GTIN Code:
00036584387657
MFG. Part #:
MK54-703-11
Intake Valve Lift w/ Rocker Arm Ratio:
0.614"
Exhaust Valve Lift w/ Rocker Arm Ratio:
0.612"
Computer Controlled Compatible:
Yes
Valve Springs Required:
No
Valve Spring Included:
Yes
Lifter Type:
Hydraulic Roller
Lifters Included:
Yes
Retainers Included:
Yes
Locks Included:
Yes
Valve Stem Seals Included:
Yes
Timing Chain and Gears Included:
Yes
Assembly Lubricant Included:
No
Pushrods Included:
Yes
Rocker Arms Included:
No
Gaskets Included:
No
Gear Attachment:
3-Bolt
Sold in Quantity:
Kit

Info

The Stage 2 Thumpr Master Cam Kit for LS GEN IV 5.3-6.0L provides an awesome idle lope in modified 5.3L & 6.0L trucks. Includes lifters, timing set, pushrods, dual springs, retainers, locks, spring seats and valve seals.

  • For Stage 2 Thumpr Master Cam Kit for GEN IV LS 4.8/5.3/6.0L Trucks
  • Camshaft Series: Thumpr NSR (No Springs Required)
  • Cam Type: Hydraulic Roller
  • Basic Operating RPM Range: 1,800-6,600
  • Intake Duration at .050 Inch Lift: 227
  • Exhaust Duration at .050 inch Lift: 237
  • Advertised Intake Duration: 282
  • Advertised Exhaust Duration: 299
  • Lobe Separation: 113
  • Intake Valve Lift: 0.614
  • Exhaust Valve Lift: 0.612
  • Lifters Included: Yes
  • Valve Springs Included: Yes
  • Assembly Lubricant Included: No
  • Camshaft Gear Attachment: 3-Bolt
  • Camshaft Material: Billet Steel
  • Lifter Style: Hydraulic Roller
  • Retainers Included: Yes
  • Locks Included: Yes
  • Pushrods Included: Yes
  • Gaskets Included: No
  • Stage: 2
  • Timing Set Included: Yes
  • Valve Seals Included: Yes
  • Valve Spring Seats Included: Yes
  • Grind Number: 282LTH13
  • Estimated Horsepower Gain with Kit: 89

Important Messages

  • This item ships directly from the manufacturer. It may take an additional 3 business days for COMP Cams to ship this item.
  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
  • This item ships via Ground Shipping only. Expedited and Air shipping options are not available.
Some parts are not legal for use in California or other states with similar laws/regulations

Reviews

Q & A

Videos & Articles
  • What happens when you advance or retard a camshaft? In this tech article, we explain the pros and cons of installing your cam straight up, advancing or retarding.
  • Learn the basics to engine performance like; how does a cam work? What is Valve lift, duration, lobe separation angle, and cam profiles? Afterwords selecting the right camshaft will be less of a guessing game!
  • Picking the right camshaft can be a challenge. Use our camshaft selection guide to learn how to select the right cam for your street rod's best performance.
  • Rebuilding an engine? Stay organized by using a valvetrain rocker arm organizer tray while disassembling the valvetrain components. Learn some tips on why you shouldn't mix up lifters if you intend on using them again.

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