WebMar 1, 2024 · The gt40x303 are an older casting of the newer x306. They flow better than your gt40s and the general consensus is that the ford aluminum heads are fairly decent, just a bit expensive since TFS and AFR have heads that flow better for a bit more. X303 specs. Combustion chamber volume: 64cc. Intake port volume: 178cc. WebNov 23, 2016 · Ford produced 11,563 Lightnings from 93 to 95. Which had a 351 (5.8L) Windsor V8 with 8.8:1 compression, a 4-inch bore and 3.50-inch stroke. The stock hydraulic, flat-tappet camshaft specifications are: …
Get 500 Horsepower from a Junkyard Ford Explorer 302 - MotorTrend
WebNov 4, 2010 · GT40 heads-any small block ford header will fit..they have the same plug angle/bolt pattern as stock heads. GT40P heads- only certain headers will work,due to the spark plug angle change. the plug sticks out almost 90* instead of on a swept angle. headers known to work with GT40P heads are. mac 1-5/8 longtube. WebGT40 & GT40P heads are a common upgrade for the factory 302 found in the early Bronco. They are popular because while they are relatively inexpensive they also offer a … h4 ead eb 5 investment
How To Upgrade Your Ford GT40P Heads - MotorTrend
WebAug 29, 2007 · The formula your talking about looks like this. (desired inches of H20 x pressure heads were tested)^.5 = flow percentage. you take the flow value at 28" H2O and multiply by that flow percentage you arrived at. example : you test heads at 28" H20 and want to know what they would be at 5" H20. WebNov 17, 2024 · Using SAE Gross ratings, the 1968-1969 302 V8 made 210-230 horsepower and 300 lb-ft of torque. For 1968, Ford also used a high performance version of the 302, the “J Code” 302, for the Shelby GT-350. The “J Code” 302 had numerous improvements over the standard version and made 306 horsepower and 310 lb-ft of torque (SAE gross). WebFord Mustang Codra GT 40 heads. $400.00. 36 bids Ending Friday at 4:30PM PDT 2d 7h. Ford 289 302 351W 408 427 5.0 Mustang Aluminum Heads GT40 EFI carburetor . $400.00. 11 bids. $205.64 shipping. Ending Apr 9 at 6:29PM PDT 4d 9h. Ford GT40P 302 5.0L 4 Bar Cylinder Head Assembly Pair w/ 1/2" Head Bolt Hole brad crider lawyer