My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

COMP Cams 1266-12 High Energy Rocker Arm Set Ratio Ford - 1.6 240-300 Inline-6

(Ford F-150 1975-78, Mustang 1969-73, F-250 1975-78, F-350 1975-78, Maverick 1970-77, F-100 1975-78, F-250 Pickup 1967-78, Fairlane 1969-70 + 20 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

1266-12
5 reviews
Sale Price

$207.95

Estimated ship date Tuesday, November 24

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The COMP Cams 1266-12 High Energy rocker arm set delivers improved valve lift and performance for 1967-1978 Ford inline-6 engines (240 and 300 cubic inch). Featuring a 1.6:1 rocker ratio, this set provides increased valve lift over stock 1.5:1 rockers, enhancing airflow and power output without requiring camshaft replacement.

Key Features:

  • 1.6:1 rocker ratio for increased valve lift and performance
  • Designed for Ford 240 and 300 cubic inch inline-6 engines (1967-1978)
  • Fits engines with 3/8" rocker studs
  • High Energy series construction for durability and reliability
  • Direct replacement for stock rocker arms
  • Complete set for all 12 valves (6 intake, 6 exhaust)

COMP Cams High Energy rocker arms are heat-treated and precision-manufactured to ensure consistent geometry and long service life. This rocker set is an economical upgrade for street performance builds, offering noticeable improvements in throttle response and overall engine performance. Compatible with stock valve springs and retainers when used with stock or mild performance camshafts.

Products specifications

Fits

Ford F-150 1975-78, Mustang 1969-73, F-250 1975-78, F-350 1975-78, Maverick 1970-77, F-100 1975-78, F-250 Pickup 1967-78, Fairlane 1969-70, Ranchero 1969-73, Torino 1969-74, Falcon 1970, F-350 Pickup 1967-78, E-350 Econoline 1975-78 + 15 more models

Engine Family

Ford 240-300 c.i. 6 Cylinder (1967-1978)

Rocker Arm Series

High Energy

AMAZON ASIN

B00062YDYQ

Prop 65

WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov

Rocker Stud Diameter

3/8

C.A.R.B. Exempt for Foreign Vehicles Manufactured Before 1967?

Yes, but must meet tailpipe emission standards for year of vehicle.

C.A.R.B. Exempt for On-Road Vehicles?

No

C.A.R.B. Exempt for Racing and Off-Road Only Vehicles?

Yes, but must be a race/competition only vehicle.

C.A.R.B. Exempt for California Certified Vehicles Manufactured Before 1965?

Yes, but must meet tailpipe emission standards for year of vehicle.

C.A.R.B. Exempt for Federally Certified Vehicles Manufactured Before 1967?

Yes, but must meet tailpipe emission standards for year of vehicle.

Rocker Arm Material

Steel

Rocker Arm Ratio

1.6

This was my first purchase from Autoplicity, I bought a HyperTech tuner for my truck, they had absolutely the lowest price of anywhere I looked by far. Only thing I could fault them on is that it took 3 days for the product to ship, a little bit long I feel for something that was in stock, but Ill overlook it since it was such a great price.

Autoplicity was quick, and fast! the shipping was standard but arrived in five days! I would definetly recommend them!

Looking for 2 more of these if possible. Thanks, Mark

very E-Z to navigate this site.

I ordered a water pump from them and that Amazon was advertising as a Chrome pump. When I discovered it was not chrome, I asked to cancel the order which was prior to shipping notification. I was told by customer service it had already been sent and I would have to wait until the item was sent for a return to be processed. The return was sent back and all money was credited to my account as promised.

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy