Howards Cams, 4/7 Swap Hydraulic Flat Tappet Camshaft & Lifter Set, Chev SB, Small Base, 243/253 @ .050, .508/.530, 112

Howards Cams 4/7 Swap Hydraulic Flat Tappet Camshaft & Lifter Set
Howards Cams most popular computer designed performance hydraulic flat tappet cams are available as cam and lifter sets. These sets offer sizable torque, horsepower, and rpm increases at an affordable price.  Each set includes a hydraulic flat tappet performance cam and a set of premium hydraulic lifters.

  High Grade Race Quality Cores
  Manufactured on Dedicated Precision CNC Cam Grinders
  100% Rockwell Tested & Parkerized Ensuring the Highest Quality
  Includes Matching Premium Lifters

Part Type: Camshaft & Lifter Set
Application: Chevrolet Small Block 262-400 1955-1998
Ignition Firing Order: OE (1-8-7-3-6-5-4-2)
Cam Style: Hydraulic Flat Tappet
Basic RPM Range: 2600-6600
Manufacturers Description: Small Base Circle, Performance/Competition. Works well with small blower or NOS.
Intake Duration @ .050": 243
Exhaust Duration @ .050": 253
Advertised Intake Duration (@ .006"): 297
Advertised Exhaust Duration (@ .006"): 307
Intake Valve Lift with OE Rocker Ratio (1.50): .508"
Exhaust Valve Lift OE Rocker Ratio (1.50): .530"
Intake Lobe Lift: .339"
Exhaust Lobe Lift: .353"
Intake Valve Lift with 1.55 Rocker Ratio: .525"
Intake Valve Lift with 1.60 Rocker Ratio: .542"
Intake Valve Lift with 1.65 Rocker Ratio: .559"
Exhaust Valve Lift with 1.55 Rocker Ratio: .548"
Exhaust Valve Lift with 1.60 Rocker Ratio: .565”

Exhaust Valve Lift with 1.65 Rocker Ratio: .583”

Lobe Separation Angle: 112 Degrees
Intake Centerline: 108 Degrees
Lifters Included: Yes, 91111 Hydraulic Flat Tappet