Manton 4130 Chromoly Pushrods — Heavy Wall (0.058"), 11.500" OAL, Cut-to-Length — VW Air-Cooled (00-4032-0)

Manton heavy-wall 4130 chromoly pushrod blanks for air-cooled VW performance engines. The thicker-wall option in Manton's lineup — designed for builds with dual valve springs, aggressive cam profiles, and sustained high-RPM operation. Heavier than the .035" wall version but far more resistant to bending and harmonic flex under high spring pressure.

Vehicle Fitment

• VW Type 1 / Type 4 performance and race builds
• Required for dual-spring cylinder heads
• High-lift cams (≥.450" lift), high spring pressure, sustained operation above 6,000 RPM
• Step down if applicable: stock-to-mild builds with single springs should use the lighter .035" wall version (EMPI 00-4022-0)

Why Choose Manton?

Manton has been making valvetrain components for high-performance air-cooled engines for over 40 years. Their VW pushrods are the standard reference for serious engine builders — known for straightness, consistent wall tolerance, and tip retention that holds up under high spring pressure.

Key Features & Benefits

• 4130 chromoly construction: 140,000 PSI tensile strength for high-performance valvetrains
• Heavy .058" wall: far more resistant to bending and harmonic flex under high spring pressure
• Cut-to-length blanks: 11.500" OAL lets you trim to your engine's exact geometry
• Complete engine set: sold as a set of 8

Technical Specifications

• EMPI Part #: 00-4032-0
• Material: 4130 chromoly tubing
• Diameter: 3/8"
• Wall thickness: 0.058" (heavy wall)
• Overall length: 11.500" (292.1 mm) with tips installed
• Tensile strength: 140,000 PSI
• Tips: heat-treated carbon steel ball tips, 5/16" diameter
• UPC: 707924480634
• Sold as: set of 8 (one full engine)

Frequently Asked Questions

• Are these pushrods cut to length? No — they ship un-cut and un-assembled at 11.500" OAL so you can trim them to your engine's geometry. Stock VW pushrod length is ~10", giving you up to about 1" of trim.
• How many pushrods are in a set? Eight — one full engine.
• 0.058" wall or 0.035" wall — which do I need? The 0.058" wall (this set) is for dual-spring heads, high-lift cams, and sustained high-RPM operation. For the other build type, use the 0.035" wall version (EMPI 00-4022-0).

Installation

These pushrods ship un-cut and un-assembled. Stock VW pushrod length is ~10" — the 11.500" blanks give you up to about 1" of trim length to dial in geometry on built engines with custom rocker geometry, oversized cam followers, decked cases, or stroker cranks.

1. Use a pushrod length checker (adjustable measurement tool) to determine final length.
2. Cut the blank to length and de-burr the cut end.
3. Press the ball tips in.

Explore Related Categories

Engine Parts, All VW Air-Cooled, Manton