Hop up your 401.

A pdf. file with great eng. building tips for the 401. 1.6 meg. - Rating: 8.00 Votes: 4 Rate It

258 York On Board Air

Add an engine driven air compressor to your 258 using a York AC compressor. new - Rating: 0 Votes: 0 Rate It

5.0 swap

302 swap in a YJ new - Rating: 0 Votes: 0 Rate It

360 Engine Swap

Tips and parts interchange for a 360 swap from a 258 into a CJ. pop - Rating: 9.60 Votes: 5 Rate It

4.0 L Cylinder Head Conversion on 258.

More power for the old workhorse. pop - Rating: 0 Votes: 0 Rate It

Motorcraft / (sometimes called Autolite ) 2100 Carb Install on 258 Jeep

This 2bbl carburetor will replace the troublesome Carter BBD and produce a superior idle. pop - Rating: 0 Votes: 0 Rate It

258 Vacume Hose Routing

by Dale Beckett - Rating: 0 Votes: 0 Rate It

4.0 blow-by.

MY JEEP IS BLOWING OIL ONTO THE AIR FILTER!! - Rating: 9.00 Votes: 2 Rate It

AMC V8 distributor oiling upgrade

The AMC V8 engine family suffers from premature wear of the distributor gears, due to lack of lubrication. The useful life of distributor gears in the AMC V8 engine family can be extended by adding an extra flow of oil onto the gears at the point of contact. - Rating: 0 Votes: 0 Rate It

Bolra Cat-back

Install - Bolra Cat-back install in a CJ - Rating: 0 Votes: 0 Rate It

Borla Headers

Install - Borla Headers installation in a CJ. - Rating: 0 Votes: 0 Rate It

Building An Adjustable MAP Sensor

Nice little article on building an adjustable MAP Sensor to fine tune your fuel/air ratio. The article uses a 4.0L but it can be applied to any EFI/MPI engine as long as you know what you're doing. - Rating: 0 Votes: 0 Rate It

Carter BBD fix.

Easy Fix for Jeep 258 Carter BBD Idle Problem - Rating: 10.00 Votes: 3 Rate It

Fix a Broken Oil Dipstick Tube

Fix - Repair that Dipstick Tube on the Cheap! - Rating: 0 Votes: 0 Rate It

Fuel Injection comparision

Reference - A side by side comparision of Mopar MPI and Howel TBI kits for the 258. - Rating: 10.00 Votes: 1 Rate It

Hand Throttle Install

You're stuck on a ledge. You're stalled. You see nothing but sky, and both of your feet are already on the clutch and brake pedals. - Rating: 0 Votes: 0 Rate It

Howell Fuel Injection Install

The kit consists of an E.C.M. (electronic control module), a throttle body unit, an oxygen sensor, a coolant sensor, a wiring harness, a jumbo fuel filter, a Walboro fuel pump (15psi), a G.M. T.B.I manual and install instructions, miscellaneous connectors, and a T.B.I to manifold adapter. - Rating: 0 Votes: 0 Rate It

Howell Throttle Body Injection

Install - Intalling the Howell Throttle Body Injection in a CJ. - Rating: 0 Votes: 0 Rate It

Mopar MPI Injection Installation

Install - Mopar MPI Injection Installation in a YJ - Rating: 0 Votes: 0 Rate It

Motor Mounts

Maintenance - Change your motor mounts. - Rating: 10.00 Votes: 1 Rate It

Timing Chain Replacment

Maintenance - A broken timing chain can make quick work of destroying an engine - depending on when and where it decides to break. A worn out timing chain is one that has stretched enough that its slack is altering the critical timing sequence of the motor. - Rating: 0 Votes: 0 Rate It