Amazing airflow

Port design by Dave Bamber – best airflow in pushrod tractor head to date at over 550 cfm.

Wet flow optimized for two down nozzles

All aspects of the design optimized for wet flow and superior combustion. Includes tapped holes for two down nozzles to inject fuel into the valve bowl area.

Complete Package

The Head Package includes assembled cylinder head with top quality components (springs, retainers, titanium valves, etc.). In addition, we include rocker arms, head studs, head gasket, billet aluminum exhaust flanges, billet valve cover, NTPA required sparkplug shield, and high quality fasteners.

John Deere Head Package

The John Deere tractor cylinder head has performed flawlessly! This revolutionary billet cylinder head has been a part of numerous event wins and has won season points championships. Each billet head is CNC machined from a solid piece of aircraft grade aluminum for the ultimate in reliability, incredible airflow and the lowest possible weight. This head package will put you in the winners circle!

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Optional Upgrades available:

Billet Aluminum intake manifold
Stainless steel exhaust header with 2000F coating
Polishing available for any/all: valve cover, intake manifold, exhaust header

Specifications

Summary:

Airflow: over 500 cfm
Weight: 102 lbs
Down Nozzles: two per cylinder
Material: Billet (solid block) of Aircraft grade Aluminum
Oiling system: built in to the valve cover

Full Specifications:

Port design by Dave Bamber – best airflow in pushrod tractor head to date at over 500 cfm. High airflow combined with wet flow testing and design has produced very impressive performance! Customers have been impressed with the performance over a wide rpm range and a wide range of fuel mixtures.

Designed for maximum reliability, and light weight (106 lbs). The aluminum alloy and heat treat have been carefully selected for maximum heat transfer, strength, and crack resistance. In addition, the design has been optimized to eliminate hot spots which eventually lead to soft spots and/or cracking.

Two fuel down nozzle connections are provided in the head for each cylinder. The location and orientation were carefully selected to optimize wet flow. Most intake manifolds are built with an additional port in each intake runner for the idle circuit.

The oiling system built into the billet valve cover is simply connected by an o-ringed connection when the valve cover is bolted down! No need to disconnect / re-connect oil lines. In addition, the perimeter of the valve cover is sealed with an o-ring rather than a gasket. Similarly, the intake flanges are sealed to the cylinder head with o-rings.