WebMar 14, 2024 · As to how to tell the heads on the motor, take a look at the front corner on the pass side. Next to the spark plug, you'll see either GTP (40P) or GT (40) indicating which it is. Also, behind the accessories (so tougher to see) are some cast bars. GT40 would be 3-bar heads, while GT40P are 4-bar heads. In addition to above markings. WebMar 1, 2006 · Registered. Joined Feb 21, 2006. 39 Posts. Discussion Starter · #1 · Feb 21, 2006. I have a set of GT40 heads off of a '94 Cobra waiting to go on my mildly built '68 302. Stock valves (1.84/1.54) and valve springs, and I'm waiting for my Crane 1.7 rollers to come in the mail (stock replacement; the guy I bought the heads from kept those).
what header choices for gt40p swap into 67? - Vintage …
WebFeb 18, 2011 · The GT-40 Iron heads do sport some enhancements beyond the P’s. For a forced induction combination, the Iron’s do have a lower compression ratio, and in the case of more aggressive camshafts the Irons usually came with GT-40 valvetrain, good for about .520 lift while the stock P head springs only go to .500. If you were to use an XE series ... WebThe GT40 heads are a bit more versatile, working with the 5.4 and 6.8, while the GT40P (Explorer/Mountaineer) heads will only work on the 6.8 due to an interference issue. … homes for sale rothwell leeds
How To Upgrade Your Ford GT40P Heads - MotorTrend
WebJan 1, 2024 · 1979 Fairmont Wagon 347,Trick Flow 205,5 speed, and 3:08 gears, for now! I wouldn't spend money on installing larger valves in GT40 heads. By the time you buy the valves, get the seats enlarged, and get a valve job is more like a ~$400 job. Besides, the 1.84/1.54 valves have proven to be up to the task. WebJan 29, 2024 · After making pretty decent power with GT40 heads, Brian removed them for Trick Flow's relatively new 11R heads. Available in 205- or 190cc intake runner sizes, we … http://www.sbftech.com/index.php?topic=25443.0 homes for sale rowley ab