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Original Message
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| RE: 67 390 build |
| By Bill - 12/20/2005 10:16:12 PM; IP 207.200.116.11 |
| galaxie390, thanks for the info, heres what i got. 73 mustang with a 67 galaxie 500 xl 390 in it. I originally wanted to restore the 67 but the kid who had it before cut off the roof for a convertible!! Couldn't get it titled because of structual integrity according to the local dmv. I made my own motor mounts and tranny mounts for the c-6, shortened the drive line and changed out the radiator support to accomadate a 3 core. #1: Now after looking at it again, the 390 has a edelbrock perf rpm and a edel 625 cfm manual choke from a purchase from ebay about 6 months ago. got a good deal. Your right, I need at least a 750 min. I saved about 60 lbs with the intake, thats good. My exhaust is a restrictive stock manifold, I had a set of truck 390 headers, but couldn't fit them with the tight shock towers. I'll need to custom make some headers i guess. Dual exhaust, glass packs. #2: Heads, I know i have the 2.09 intake, not sure about exhaust size? How would I get 166 valves in it? would I have to get them machined to fit them? I could clean them up myself, but not sure about putting in new valves. Would I need new springs? double springs, what rating? New seats? etc? #3: crank, I know a guy who has a 428 crank, not turned though, would I need to change out main bearings? would 390 bearings still fit? What about connecting rods? Leave them for increased c.i.?#4: If I would get a larger crank, like the 282s, that lift is about .548? would new springs in the old cast iron heads allow the new lift? A bigger cam would be great for me. Also, my 8.8 rear end is a 300:1, should I change out the ring/pinion to a 410:1? would it make a big differenmce? I'm trying to get a nice street mustang to run around with on weekends and local shows. Not a bracket/strip. 400 hp would be great. Thanks Bill |
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