[obinine]

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[bitdragon]

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[matonis]

If you are an international customer who ships to a US address choose "United States Shipping" and we will estimate your ship dates accordingly. [links]

[offtomalta555]

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[BlackEye]

We bolted the AFR heads onto the short-block with a set of ARP head bolts and a new set of Fel-Pro head gaskets, and reinstalled the Weiand dual-plane along with a brand-new Road Demon Jr. 625-cfm carburetor (see sidebar). With 35 degrees of total ignition lead and 70 jets in the primary metering block, the little 302 produced a jaw-dropping 382 hp at 6,000 rpm and 368 lb-ft of torque at 4,200, a gain of 104 hp and 53 lb-ft solely from the heads and headers.

[T_X]

The foundation for the test was a bone-stock 5.0L H.O. engine taken from a '91 Mustang. As delivered, 5.0 engines of this vintage had forged-aluminum pistons, a hydraulic-roller camshaft (see spec chart), a double-roller timing set, and stamped 1.6:1 nonadjustable rocker arms. Rated static compression runs around 9.0:1 with the stock cast-iron E7TE cylinder heads, which are equipped with puny 1.78/1.46-inch intake/exhaust valves and nominal 60cc chambers. With stock fuel-injection, this engine was factory rated at 225 hp at 4,200 rpm and 300 lb-ft of torque at 3,000.

[Fox]

With those numbers in hand, we made three changes in two steps: first, we bolted on a set of Air Flow Research's 50-state-legal 165cc aluminum cylinder heads. Equipped with 1.90/1.60-inch intake/exhaust valves, these heads are designed to clear the valve-relief notches in the stock forged-aluminum pistons without modification, making them an easy bolt-on. We opted to order the heads with provisions to accept the stock nonadjustable pedestal-style rocker-arm setup, which allowed us to test them with the stock stamped rockers. AFR also offers these heads set up with studs and guideplates for conventional roller rockers. We've seen these heads tested on other combinations and have been impressed with their performance, but this is the first time we've bolted a set of the 165s on such a stock engine. Rather than choke the heads with the stock exhaust manifolds, we stepped up to a pair of Doug's Headers stepped Tri-Y headers designed to fit a '60-'65 Ford Falcon, the car we eventually plan to swap this engine into. Previous testing has shown this design, which incorporates stepped 1-5/8-to-1-3/4-inch primary tubes, to be fully equal to, if not slightly better than, traditional four-into-one long-tube headers. [links]

[michelles]

Our test engine maintains most of those specs, with the only alterations being a quick bottle-brush hone to clean up the cylinder walls and a set of fresh rings and bearings. We baselined the freshened-up short-block with a pair of rebuilt but otherwise stock E7TE factory heads, the stock hydraulic-roller cam, stock tubular exhaust manifolds, and a Weiand Stealth dual-plane intake topped with a four-barrel carburetor. That combination developed 278 hp at 5,200 rpm and 315 lb-ft of torque at 4,100 on Westech Performance's SuperFlow 901 engine dyno.

[sheilawalls]

The key to this remarkable achievement is simple: one awesome set of cylinder heads. Heads so good in fact, that they are worth about 100 hp over a set of stock 5.0L Mustang heads on their own. You read that right--100 horsepower. Over the years, we've tested many great cylinder heads and have become used to gains of 50, 75, or more horsepower compared to low-performance factory castings, but the Air Flow Research 165cc smog-legal heads we tested on this small-block Ford may take the prize for the best bolt-on performance gain we've ever seen from a set of heads. here

[limikael]

Of all the classic small block engines Ford has produced, none have been more frequently modified than the 302. None more coveted than the hydraulic roller tappet engines first used in 1985 GT Mustangs. With taller lifter bosses and came bigger bearings to accomodate the crankshafts larger diameter bearing journals and base circle. The 302 remains one of Ford enthusiasts favorite engines. Speedway Motors has all the power adding parts you need to help take your 302 Ford to the next level - all at the best prices you'll find.

[x69to005]

[copsewood]

[links]

[jinnyh345]

Battery, Red Top, 12 V, Starting, 800 Cold Cranking Amps, Side Terminals, BCI Group 34/78, Each

[Pascual99]

Carburetor, Street Warrior, 600 cfm, Square Bore, 4-Barrel, Electric Choke, Single Inlet, Silver, Each

[audrey01]

Part Number: SUM-HT900 more