# Comp Cams Poly Lock, 3/8 Ultra Gold Narr Ow Body

Ultra ARC Aluminum Narrow Body - 3/8 Polylock. The Comp Cams Ultra ARC Aluminum Series Rocker Arms increase engine power, improve valvetrain stability, and enhance oiling efficiency. Their extruded design—developed using FEA analysis—creates a stronger, stiffer rocker body without adding unnecessary weight. The ARC series rocker arms feature an Arced, Recessed, Contoured design delivers an optimal strength-to-weight ratio. Backed by a Lifetime Warranty—buy them once and use them forever. Engineered for applications running up to 700 lbs of open spring pressure.

## Details

- **Price:** 40.99 CAD
- **Vendor:** COMP Cams
- **Type:** Rocker Arms

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 40.99 CAD | In stock |

## Images

- Photo - Primary
- Logo Image

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/comp-cams-poly-lock-3-8-ultra-gold-narr-ow-body)
> Updated: 2026-08-23