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Author	Topic: 85 5.0 BLOCK SWAP
Bluegras Journeyman Posts: 23 From: Registered: Nov 2001	posted 01-03-2002 12:12 AM Would there be any driveability problem with a stock roller cammed block in place of the flat tappet in an 85 F150 Speed Density EFI pu? IP: Logged
SteveLaRiviere Administrator Posts: 20027 From: Saco, Maine USA Registered: May 99	posted 01-03-2002 07:47 PM All of the ECM's parameters would be off, so I bet there would be problems. ------------------ '70 Mustang Mach 1 M code 351C 4V/FMX/3.25 open '72 Mustang Sprint Coupe 351C 4V/FMX/4.30 Trac Lok '94 F-150 XL 5.8L/E4OD/3.55 Limited Slip '97 Probe GTS 2.5L DOHC IP: Logged
cpmaverick Moderator Posts: 1180 From: Auburn, AL. Registered: Jan 2000	posted 01-03-2002 07:47 PM I think the Truck computer could compensate for the roller cam. You might want to look into buying an adjustable fuel pressure regulator to up the fuel pressure in case it runs a little lean with the extra air. EDIT: Are you using a fullsize car or Mustang roller cam? [This message has been edited by cpmaverick (edited 01-03-2002).] IP: Logged
Bluegras Journeyman Posts: 23 From: Registered: Nov 2001	posted 01-04-2002 12:34 AM Good question. I would have tried to use a Mustang 5L block unless you have info I should consider. Cam lobe went flat on a rebuilt short block and my Lsc MK7 runs so well as speed density I was trying to see if it could be done without any problems. Thanks Charlie. IP: Logged
cpmaverick Moderator Posts: 1180 From: Auburn, AL. Registered: Jan 2000	posted 01-04-2002 10:01 PM I really think that with an adjustable FPR you can make the truck run fine, but surely you can find some info on the web where someone has done this. If there are any problems, the truck ECM would be closer to the full-size car cam and compression, but I think the Mustang one (stock) would work. Try posting on http://www.pirate4x4.com/forum . There are a lot of knowledgable people there and many have converted to or modified Ford Truck Fuel Injection. ------------------ -Charlie Ping 1970 Maverick Grabber [email protected] with AC and overdrive. http://www.maverickgrabber.com IP: Logged

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