A
Anonymous
Guest
I scored a 425 today for $150 bucks. its going to see 5 grand once and while its a mud racing truck.
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Anonymous
Guest
You wont have any trouble with the Caddy rods at 5000, I would recommend putting arp rod bolts in it while at the machine shop :twocents: 
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Anonymous
Guest
I was reading about the 403, 7 inch rod combo. Im thinking of going in this direction.
dave brode
Well-Known Member
1978ScottsDale,
The 403s are apx 40 or so thou shorter than optimum. You'll have to whack the heck out of the deck if you want tight quench.
Dave
link=topic=1062.msg11219#msg11219 date=1112644114]
I was reading about the 403, 7 inch rod combo. Im thinking of going in this direction.
The 403s are apx 40 or so thou shorter than optimum. You'll have to whack the heck out of the deck if you want tight quench.
Dave
link=topic=1062.msg11219#msg11219 date=1112644114]
I was reading about the 403, 7 inch rod combo. Im thinking of going in this direction.
A
Anonymous
Guest
Yes,if your going to want an open chamber head and pump gas
otherwise its custom pistons and race gas..TI
otherwise its custom pistons and race gas..TI
dave brode
Well-Known Member
1978ScottsDale,
Olds = 7"? If that's what you mean, if you want a longer rod, the 7" rod and 454 pistons deal is an option, but really only for a 120cc head pump gas deal with flat tops, for most apps.
More fyi - There are 8.5cc dish 454 forgings from Speedpro up to 4.310". There are 18 cc dish hypers from KB up to 4.350". There are dished forgings in 4.35" and so on with various dish volumes from JE, Ross, SRP, etc. The dished 454s *may* work for a 10.5-1 to 11-1 compression 76cc combo, but afaik, nobody's tried it yet.
Fwiw, imo, for a good pump gas deal [10-1 or so] with 76cc heads, the caddy rods, or 6.735" olds rods and Caddy KBs [or ebay Caddy Ross] pistons look like the best deal to me.
Dave
link=topic=1062.msg11225#msg11225 date=1112651059]
So the olds, chev piston is still the way to go
Olds = 7"? If that's what you mean, if you want a longer rod, the 7" rod and 454 pistons deal is an option, but really only for a 120cc head pump gas deal with flat tops, for most apps.
More fyi - There are 8.5cc dish 454 forgings from Speedpro up to 4.310". There are 18 cc dish hypers from KB up to 4.350". There are dished forgings in 4.35" and so on with various dish volumes from JE, Ross, SRP, etc. The dished 454s *may* work for a 10.5-1 to 11-1 compression 76cc combo, but afaik, nobody's tried it yet.
Fwiw, imo, for a good pump gas deal [10-1 or so] with 76cc heads, the caddy rods, or 6.735" olds rods and Caddy KBs [or ebay Caddy Ross] pistons look like the best deal to me.
Dave
link=topic=1062.msg11225#msg11225 date=1112651059]
So the olds, chev piston is still the way to go