How much HP will GT40 heads add?

Essentially, you can port your E7TE heads, which will earn you about thirty horsepower, or you can upgrade to GT40 heads, which will also earn you about thirty horsepower.

Why are GT40 heads better?

The GT40P does have a slight edge over the GT40 cylinder head because of its smaller chamber volume. The smaller combustion chamber can net a bit more compression, but only marginally. Flow data shows them to flow within a few CFM (cubic feet per minute, more CFM is better) of each other.

What did GT40 heads come on?

Which Vehicles Had GT40P Heads? The GT40P cylinder heads arrived on the scene in 1997 with Ford’s revision to the GT40 head. These heads were installed on the ’97-and-later Ford Explorer and Mercury Mountaineer SUVs.

What size valves are in GT40 heads?

The GT40 valve sizes are 1.85/1.54 for the intake and exhaust, while the GT40P went to a smaller 1.46-inch exhaust valve. There were other changes to the GT40P, including a slightly smaller combustion chamber reduced from 65 cc to roughly 60, which benefits the compression ratio.

What does GT40 stand for?

The high-performance Ford GT40 is the dream child of Ford Motors, conceived in America and birthed in England. The GT stands for Grand Touring, and the 40 refers to its overall height in inches. It was produced from 1964-1969, and has since become an American racing icon.

How much horsepower can a Ford 302 make?

Standard Ford 289 and 302 small-blocks were factory-rated between 200 and 230 hp. The vaunted 289 High-Performance engine was said to make 271 hp. Today, if a 302 Ford makes 360 hp on pump gas with a hydraulic cam, most experts consider it to be a pretty good motor-at least until Joe Sherman steps up to the plate.

What’s the difference between Ford GT and GT40?

The GT is similar in outward appearance to the original GT40, but is bigger, wider, and most importantly 4 in (100 mm) taller than the original’s 40 in (100 cm) overall height; as a result, a potential name for the car was the GT44.

How much do GT40P heads flow?

A set of brand new, stock GT40P’s will flow 190cfm from . 400 to over . 500 lift intake, peaking at about 195cfm. That’s a serious improvement over stock, and well matched to mild head/cam/intake combinations.

Will GT40P heads fit 289?

Pretty much all 289 heads, except for the C3 HiPo heads, have 54.5cc chambers. GT40P’s run from 59-61cc. Expect to drop a half point in compression ratio, but you’ll make up some flow due to the larger valves and improved exhaust runner.

Was Ken Miles robbed?

In any event, McLaren’s car passed Miles, robbing him of a potentially historic triple crown (he’d already won prestigious races at Daytona and Sebring).