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CYLINDER HEADS

AFR 165cc SBF Street Cylinder Head

For the ultimate small block Ford street car, you’ve got to use AFR’s all new 165cc emissions legal cylinder heads. Unlike some aftermarket heads, AFR’s Ford head (CARB EO #250-3) fits all your stock components; no special parts are required! With 1.900 intake valves, 1.600” exhaust valve, and combustion chamber volumes of 58cc or 61cc, and 69cc exhaust ports, AFR’s new 165cc Ford head is perfect for 289 and 302 engines operating from idle to 6000 rpm. A 3/4” thick head deck makes the AFR head ideal for nitrous or blower applications. Will not accept rail rocker arms. Hardened push rods required with part numbers 1400 and 1402. Note: 1986 5.0L must have piston notched for clearance.
 

AFR 165cc SBF Street/Strip Cylinder Head

These heads come ready for the maximum street/strip Small Block Ford performance possible. They are not emissions legal. With the 165 coming with 1.900 intake and 1.600 exhaust valves and the 185 sporting 2.020 intake and 1.600 exhaust valves. Both heads feature 58cc or 61cc combustion chamber with 69cc exhaust ports. Both the 165cc and 185cc have available as an option nitrous or blower exhaust ports featuring either a 75cc or 80cc ultra high flowing exhaust port. With AFR’s trademark 3/4” thick head deck, it’s no problem handling that additional cylinder pressure. Each head is also drilled for the larger 1/2” head bolt hole for maximum head gasket retention as a standard feature of this serious race piece in street disguise.
 

AFR 185cc SBF Street Cylinder Head

If you need the world’s finest street/strip small block Ford head, check out AFR’s all new 185cc intake port emissions legal (CARB EO #250-3) cylinder heads. With 2.020 intake valves, 1.600” exhaust valves, combustion chamber volumes of 58cc or 61cc, and 69cc exhaust ports, AFR’s new 185cc Ford head is designed for 302-351 cid engines operating from 1500 rpm to 6500 rpm. A 3/4” thick head deck makes the AFR head ideal for nitrous or blower applications. Will not accept rail rocker arms. Hardened pushrods required with heads #1420 and #1422. High flow 2.020 valves might require aftermarket pistons notched for valve clearance. Note: 1986 5.0L must have pistons notched for clearance.
 

AFR 185cc SBF Street/Strip Cylinder Head

These heads come ready for the maximum street/strip Small Block Ford performance possible. They are not emissions legal. With the 165 coming with 1.900 intake and 1.600 exhaust valves and the 185 sporting 2.020 intake and 1.600 exhaust valves. Both heads feature 58cc or 61cc combustion chamber with 69cc exhaust ports. Both the 165cc and 185cc have available as an option nitrous or blower exhaust ports featuring either a 75cc or 80cc ultra high flowing exhaust port. With AFR’s trademark 3/4” thick head deck, it’s no problem handling that additional cylinder pressure. Each head is also drilled for the larger 1/2” head bolt hole for maximum head gasket retention as a standard feature of this serious race piece in street disguise.
 

AFR 205cc SBF Race Head

If you’re looking for the world’s finest street/strip head available, AFR’s 205 head is your answer. With 2.080 intake valves, 1.600 exhaust valves this head moves tremendous volumes of air through conservative runner volumes, spelling big torque and horsepower numbers. With combustion chamber volumes of 60cc with 71cc exhaust ports, which are raised.125 higher than stock. AFR’s new 205cc is the ultimate choice for 331 through 392 engines operating from 3500 RPM to 8000 RPM. AFR’s trademark 3/4” thick head deck makes them ideal for heavy nitrous or blower applications. With available optional nitrous or blower exhaust ports featuring 75cc, 80cc ultra high flow exhaust ports.
 

AFR 225cc SBF Race Head

Are you looking for big torque and horsepower number? Only AFR’s 225cc will provide you with exactly that. With the largest intake and exhaust runner volumes for our in-line Ford line up, these are the ultimate for NMRA Renegade or Hot Street classes. With 2.080 intake valves and 1.600 exhaust valves these heads move massive amounts of air. Combustion chamber volumes of 60cc and 80cc exhaust ports which are raised .375 higher than stock. AFR’s new 225cc is the perfect choice for 347 through 427 CI windsors engines operating between 4500 to 8500 rpm. Our trademark 3/4” thick head deck makes them ideal for heavy nitrous or blower applications.
 

FORD Trick Flow R-Series heads, assembled

The R-Series Heads have large 206cc intake ports. Exhaust parts are raised .500" from stock, for better flow. They are machined for 2.08"/1.06" valves. At .700" of valve lift, they can flow 305 cfm intake/222 cfm on exhaust. They are for 302, 5.0L, or 351W SBF.
 

FORD Trick Flow Ford R-Series heads bare

The R-Series Heads have large 206cc intake ports. Exhaust parts are raised .500" from stock, for better flow. They are machined for 2.08"/1.06" valves. At .700" of valve lift, they can flow 305 cfm intake/222 cfm on exhaust. Bare castings come w/seats and guides.

FORD Trick Flow Track Heat Heads Assembled

Trick Flow Track Heat heads have 61cc chambers with rotated intake and exhaust valves, 2.02"/1.60" The fully assembled heads have higher rate springs (135# seat pressure at 1.800" installed hight), 10 degree locks, and manganese bronze guides. Cam lift max, .625"
 

FORD Trick Flow Twisted Wedge Heads Assembled

These Twisted Wedge heads have our exclusive combustion chamber design. The 61cc chambers feature rotated intake and exhaust valves moved over to the center of the cylinder bores. As a result, the Twisted Wedge heads use stock height exhaust ports without sacrificing power. The heads are machined for 2.02 in. intake/1.60 in. exhaust valves to build top-end power without losing bottom-end torque. They don't require flycut pistons for use with the cams up to specifications listed. No other 2.02 in. valved head for small block Ford offers these features! Sold as a pair. This part carries CARB E.O. number D-369-3 for use in California

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