WebDec 19, 2024 · Just sell it and buy a better intake. Dyno tuning a gt40 setup is an even worse use of money. A calibrated meter and injectors and it would be fine. Keep the EGR or just use a simulator. Most likely you could even run the stock meter and injectors since gt40 iron stuff doesn't exceed the stock 19lb injector capacity. WebDec 23, 2006 · Flow number are my best guess after talking with several people who port gt-40x heads regularly. Intake: 270 cfm at .550" lift Exhaust: 170 cfm at .500" lift The heads were hand ported by a well known nascar guy in Charlotte. I asked the machine shop today and he can't recommend anyone in Jacksonville, FL to flow test the heads.
Head flow on stock 289 heads Vintage Mustang Forums
WebIntake port volume 166cc 178cc 178cc Exhaust port volume 54cc 62cc 62cc Intake valve OD – 1.94" (21-4N stainless steel) for all Exhaust valve OD – 1.54" (21-4N stainless steel) for … WebAug 4, 2009 · Port and Polish 213.29 Intake +19.12 CFM 163.35 Exhaust +24.02 CFM http://www.castheads.com/ford_gt_40.php These guys are charging $1,000 and I matched the intake flow and beat the exhaust flow. This is also with stock valves without any valve … oranges shampoo
Thumper ported GT40 heads arrived (pics) - StangNet
WebAug 3, 2004 · If you fig. in the going price of gt40 heads and the porting then it would come in at about 900$ range. Thumper said over 230 on the intake side, So I would guess comparable to what other heads flow at that level on the exh. as there has been alot of good work there. But I realy have no idea what the exh. flows maybe thumper can jump in and … Webported gt40 iron flow numbers - Northern California Ford Owners Email this post to someone! Page: 1 2 Author Topic: ported gt40 iron flow numbers Jaejae5.0 ¯ Member # … WebDec 1, 1999 · Best of all for vintage Ford owners, the new heads bolted right on top of 289, 302, and 351 Windsor engines, so all of a sudden we went from digging through junk … oranges safe during pregnancy