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Tech Feature: Jeep TJ Cylinder Block Casting Information
It was considered one of the best off-road engines ever made. The extreme low-end torque is ideal for trailing and rock crawling, but "no mas" for the 4.0L Jeep. 2006 was the end of U.S. application production. More
Tech Tip: 1987-93 Jeep 4.0L: Head Gasket Leaks/Seepage Found in Engines
Some vehicles equipped with a 4.0L engine, may experience engine oil leaks/seepage from the head gasket along the right-hand side (tappet rail) of the engine. More
Tech Feature: Taking it to the Streets
We have all seen in our industry that a "streetable" racing engine or a "raceable" street engine appeals to a broad spectrum of potential engine buyers because of its flexibility. Yet, everyday street driving is not the same thing as serious drag racing. More
Tech Tip: Honda's V6 Engine Leaks Oil from Front/Middle/Rear
If oil is leaking from the front, middle or rear of one of the above engines, it may be due to the cast aluminum engine block may be porous in spots. Depending on the location of the leak, seal it with JB Weld or 3-Bond-coated sealing bolts. More
Tech Feature: Northstar Supernova
Introduced in 1993, GM's 4.6L 32-valve dual overhead cam all-aluminum V8 engine - housed in the Cadillac Allante, Eldorado and Seville STS - was considered a quantum leap forward for U.S. automakers. Initially rated at 295 horsepower, the Northstar V8 has grown over the years to an incredible 469 hp at 6,400 rpm (STS-V Supercharged Northstar engine). More
Tech Tip: Fix for a Squeaky Nissan Drive Belt
Drivers of certain Nissan vehicles may complain about noises coming from the drive belt. Correcting these noises will involve inspecting the power steering oil pump pulley alignment and possibly realigning the pump bracket (if needed), and replacing the auto-tensioner and drive belt with the ones listed below (if needed). More
Tech Tip: Cylinder Block Cracks on 4.6L Cadillac Engines
A subject certainly worth knowing about is cylinder block cracks on the Cadillac 4.6L DOHC engine. You may never see one of these cracks unless you painstakingly look for it or it bites you on a warranty. However, it becomes obvious almost immediately if you need to resurface the block deck. More
Engine Tech Feature: Aftermarket Blocks are More Versatile than Ever
Many of today's new parts offer benefits not found on the old pieces. And in many cases, those old pieces just cannot offer what the new ones can in the way of performance possibilities. More
Tech Tip: Coolant Leak from Intake Manifold Water Outlet on Nissan Frontier and Xterra Models
Vehicle owners may complain of engine coolant under the vehicle when parked or the smell of coolant when the engine is warm. The cause may be coolant leaking between the water outlet housing and intake manifold sealing surfaces. More
Feature Article: Subaru Performance Brake, Suspension & Engine Mods that Pack a Punch
A project car in the form of a WRX/STI shows that Z Sport in Everett, WA, is all about ­balancing ultimate performance within legal parameters and practicality. See what performance modifications the shop has completed with that goal in mind. More
 
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