Header banner
Revain logoHome Page
πŸš€ performance boosting comp cams k12-602-4 big mutha' thumpr 243/257 hydraulic flat cam k-kit for chevrolet small block engines logo

πŸš€ Performance Boosting Comp Cams K12-602-4 Big Mutha' Thumpr 243/257 Hydraulic Flat Cam K-Kit for Chevrolet Small Block Engines Review

5

Β·

Very good

Revainrating 5 out of 5Β Β 
RatingΒ 
4.8
πŸš€ Engines & Engine Parts, 🏎️ Performance Car Parts & Accessories

View on AmazonView on Π―M

Media

(1)
img 1 attached to πŸš€ Performance Boosting Comp Cams K12-602-4 Big Mutha' Thumpr 243/257 Hydraulic Flat Cam K-Kit for Chevrolet Small Block Engines

Description of πŸš€ Performance Boosting Comp Cams K12-602-4 Big Mutha' Thumpr 243/257 Hydraulic Flat Cam K-Kit for Chevrolet Small Block Engines

Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle. 2,500-6,400 RPM Operating Range. 243/257 Duration at .050". 107 Degree Lobe Separation Angle. 0.5"/0.486" Valve Lift. K Kits vary in their contents, but generally contain a camshaft, a set of lifters, valve springs, retainers, locks, valve seals, timing set, assembly lubricant, decals and instructions. Check description for more accurate listing of kit contents. 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.

Reviews

Global ratings 5
  • 5
    4
  • 4
    1
  • 3
    0
  • 2
    0
  • 1
    0

Type of review

Revainrating 4 out of 5

Review - Engines and Engine Parts

Thank you. The piece arrived ahead of the delivery date and works as advertised and our kids love the teddy bear hat. Will do future business with you.

Pros
  • Complete Set
Cons
  • Could have chosen a newer model

Revainrating 5 out of 5

good stuff in engines and engine parts

if you are looking for a cam that will make your engine sound worse than it is. This is for you. all the headaches of a big camera without a huge performance boost. This is exactly what I wanted, so I liked it. I drove a truck with this camera every day for a year and got about 8 mpg. Every time you start it, you forget about all the money you pay at the gas station

Pros
  • Pleasant to use
Cons
  • Reliability

Revainrating 5 out of 5

Great sound!: Motor parts

Great price and great sound. There is everything except spring plates that go under the springs. Depending on your setup, you might not need them, but keep that in mind. The timing chain isn't really a pulley, but that might not matter too much. Breakin lube is in a plastic bag that I missed. I used my own molybdenum based cam grease. Add some ZDDP to your oil and do this at every oil change.

Pros
  • A dream come true
Cons
  • Functionality

Revainrating 5 out of 5

Competition Cam Review

This is a well designed cam for a great sounding hot rod. small base circle. For this reason I had to send the cam back. When I bought the cam I didn't realize it wasn't cut on the small base circle as the cams I have fitted to this engine in the past were cut on that small base. basic circle and didn't cause me any problems. I'm sure it will work well in standard 400s and 350s and other small block Chevrolets with stock crankshafts (no engine). Sincerely, Handy7rick at yahoo.com

Pros
  • Lasting Test Results
Cons
  • For Old