Mercury Racing is about six months away from releasing a unique DOHC, 32-valve cylinder head for the LS engine, similar to their QC4 crate engine.

It's a job for only the most-skilled of mechanics, but head porting can lead to some impressive power gains if performed properly

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What It Takes To Pull Off A Successful Home-Grown Port Job

Cylinder Head 3sfe - Free download as PDF File (.pdf), Text File (.txt) or read online for free. The document provides instructions for removing and disassembling the cylinder head on a 3S-FE engine. It describes 33 steps including removing components like the exhaust manifold, intake manifold, camshafts, valves and cylinder head. It instructs to keep components organized and remove camshafts level to avoid damage. It also describes cleaning and inspecting removed components like pistons…

Basic instructions of cylinder head porting to increase horsepower - Popular Hot Rodding Magazine

We check out Blueprint Engines’ LS3-headed 3.6-liter four-cylinder, with the potential to make well over 300 hp—and even more with power-adders.

Porting cylinder heads has long been a right of passage for serious hot rodders looking to add power on a modest budget.

Head Porting for the Do-It- Yourselfer - LC … Head Porting for the Do-It- Yourselfer professional cylinder head porting on a 5.0-liter Chevrolet Small-Block V8 however, all basic porting...

We show you the steps and technology that goes in to porting your cylinder heads for maximum Ford Mustangs - Mustang & Fords