Engines and Components› Camshafts and Valvetrain

COMP Cams

COMP Cams Rocker Arm Spacer CRB Pro Mag

$12.95

SKU: C007 1321SP-1

In Stock
In Stock
Ships by Aug 3
Free Shipping over $100
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

Part #: 1321SP-1

COMP Cams Spacer for Ultra Pro Magnum Big Block Chrysler Shaft Mount Rocker Arms Part #1621-16

MIA's Description

The COMP Cams 1321SP-1 is a roller rocker arm designed for street performance applications. Constructed from 8620 chromemoly steel, these Magnum roller tip rockers can accommodate up to 350 lbs of spring pressure. This specific rocker arm features a 1.6 ratio and is designed for use with 3/8" studs.

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

BrandCOMP Cams
Part NumberC007 1321SP-1

Videos

COMP Cams® Quick Tech: Which Rocker Is Right For Me?

COMP Cams® Quick Tech: Which Rocker Is Right For Me?
COMP Cams Ultra Pro Magnum Rocker Arms

COMP Cams Ultra Pro Magnum Rocker Arms
Speed Secrets: COMP Cams LS Rocker Arms explained!

Speed Secrets: COMP Cams LS Rocker Arms explained!
LS Rocker Arm Trunnion Tool 54702-TL

LS Rocker Arm Trunnion Tool 54702-TL
How To: Set Pre-Load with Non-Adjustable Rockers

How To: Set Pre-Load with Non-Adjustable Rockers
COMP Cams® Quick Tech: How To Install An LS Rocker Arm Trunnion Upgrade Kit

COMP Cams® Quick Tech: How To Install An LS Rocker Arm Trunnion Upgrade Kit
Comp Cams' Max-Lift BSR Shaft Rocker System For The LS

Comp Cams' Max-Lift BSR Shaft Rocker System For The LS
COMP Cams Ultra Pro Magnum Rocker Arms

COMP Cams Ultra Pro Magnum Rocker Arms
comp cam roller tip rocker arms vs no name brand rocker arms lt1 engine who makes them

comp cam roller tip rocker arms vs no name brand rocker arms lt1 engine who makes them
COMP Cams® Quick Tech: Achieving Proper Rocker Arm Geometry

COMP Cams® Quick Tech: Achieving Proper Rocker Arm Geometry

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.

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