Thread: Rebuilding My 390
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05-11-2005 08:54 AM #1
Alright, havnt been on in awhile(been trying to get some money for rebuild and racing) my rebuild plan has been revised a little bit, as of getting my pay check this week im going to order a 625 Road Demon Carb, and all the stuff to rebuild my rearend and its posi. Iv found someone that will rebuild the tranny for me if i supply the parts +2kRPm Stall, so the motor is the only thing left to figure out. My plan as of current is to use a 625 carb for Daily Driving(Holly 780 Double Pumper for track) use the repo 428 4v intake and the repo 428 CJ exhaust manifolds with 2 1/2 or 3" piping after manifolds with edelbrock/spintech mufflers(anyone know which sounds better), now heres my question what cam should i use and what to do to the heads, my goal is between 350-400 HP with roughly 6kRPM redline. (utilizing HV oil pump and baffle/windage tray in stock pan) so iv heard that the stock 390GT camm is fairly good so its down to crane powermax/stock 390GT/Edelbrock Performer. For the heads i was just planning on a "street" port and polish(cleaned up bowl and chambers?), valve job, hardened seats, SO anyones advice appreciated its starting to come down to ordering parts and i wanna do this right the first time, motors a little hard to work on in that engine baythanks guys
Steven
PS where can i get some stock replacment forged pistons(10.5:1)?? the only ones in summit are SRP and only account for a listed 9.6:1 Compression. Where can i find out what heads i have and what size the chambers are?? Thanks for the help and sorry bout long post1948 Ford F1: 12.99 @104 *New Best*
"Its just a 6cyl with a cam, i promise"
67GTA in the works -15.4@90 last year w/140kmiles on all stock motor, new motor in ready to go
".......So sanded it all down and resprayed. ......" Been there. done that on a couple of paint jobs over the years. Usually took me a couple of days to get over being mad before I started...
Stude M5 build