Right now I have a ton of questions. I just purchased a 1973 Mach 1 Mustang and it's equiped with the 2V 351C. The car accelerates alright but I need more. The guy I bought it from gave me a set of Aussie 302C 2V closed chamber heads and told me that they would bump up the compression from 8.something:1 to 11:1 - is this true? These heads are bare and I'm having a hard time trying to find what size vavles go in them. The guy I bought the car from did not know to much about the Aussie heads and was really no help in finding what size valves the heads take. Are these Aussie heads even worth fooling with? I plan on installing a Comp Magnum 284 Hyd. Roller with a TCI 10" stall in the FMX trans and 3.90 gears in the back. The car already has a Edelbrock Performer intake and Holley 650 mechanical secondary carb which I don't think will be enough for the upgrades I have planed. Will the Parker 2V intake and Holley 750HP carb with annular boosters and 4 corner idle be a good choice? I will appreciate any help and advice you guys can give.
....I would also like to know if the stock pistons will hold up untill I can afford to build the bottom end. This car only has 51,000 original miles. This kid is the second owner and the car belonged to his grandfather before being passed on to him. This car is in beautifull shape inside and out.
The Aussie 2v heads will help and the Parker intake is a nice piece. The 750 should work well on your combination. If you are planning on any strip action I would look into a C-4 or C-6 over messing with the FMX.
Chris
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Drag racing, because football, baseball, and golf only take one ball to play.
393 Cleveland, iron 4v heads, solid roller, powerglide, 4.56 gears good for 10.02@132 n/a.
I had 302 closed chamber (Aussie) heads on my 351C. Depending on what pistons you have (dished, flat top), compression could definitely go over 11:1 - mine was so high I couldn't run it on pump gas. I was going out to the aerodrome every few months and (illegally) buying 90gal of aviation gasoline.
Then I blew both headgaskets almost simultaneously - so changed to standard 351 open chamber 2V's.
But it had some mean compression with those 302 heads on...
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