Engines and Components Camshafts and Valvetrain

Great Plains Industries

KIT HARDWARE RP-10

$43.44

SKU: G017 123505-503

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Description

The Howards Cams 123505-12 is a retrofit hydraulic roller camshaft designed for 1965-1996 Chevrolet 396-502 (Mark IV) BBC engines. It features a lift of .680/.680 and a duration at 0.050 of 247/255.

Utilizing race-quality cores, this camshaft offers the benefits of a roller cam, such as reduced friction and increased RPM capability, with the durability and ease of maintenance of a hydraulic system. It is best suited for larger cubic inch engines with a compression ratio of 10.5:1 or higher.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandGreat Plains Industries
Part NumberG017 123505-503

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy