|10-01-2008 04:32 AM|
The big PORT Heads C.J / S.C.J. Were For 7 + G's - Lower Vacuum @ 3 Gs.
For 450 H.P. @ 7,000 R.P.M. Put a Dominator carb. + Electronic Ign. + Big cam, 5.0 L. / 290 Dur. on 9.0:1 Combustion. Premium Gas.
|09-30-2008 06:00 PM|
|onebadmerc||Get a Ford Motorsport timing chain and set it at 0 degrees or you can do like I did on my 78 460 and set it at 2 degrees advance. This little change from the stock retarded timing chain will make quite a bit of difference. If you have the D2VE head on your 429, get rid of them, they are the worst heads ever made for a 429-460 engine. If you want more compression look for a set of D0VE heads, theses are small chamber 429-460 heads. The most common head for a 429-460 is the D3VE heads. The D3VE have larger closed chambers than the open chamber D2VE heads which are detonation prone. All standard 429-460, C8VE, D0VE, D2VE, D3VE heads have the same ports this excludes fuel injected 460 heads, 429 CJ, SCJ and 429-460PI and 429BOSS. In 1973 Ford went to the sled fulcrum design rocker, prior standard 429-460 heads had rail rockers. All 429CJ, SCJ and 429-460PI had adjustable conventional rockers with pushrod guild plates.|
|09-30-2008 05:24 PM|
|T45965||Thanks for the comments! Very much appreciated. S|
|09-30-2008 04:47 PM|
|09-30-2008 12:12 PM|
|FEDDO||I think they were all retarded. just use a timing set that had different keyways. depending on your cam, install st up.|
|09-30-2008 12:08 PM|
|barnym17||Best bang for the buck would be a 69 or 70 timing set.Ford retarded the timing of the cam about 8 degrees for emission reasons in 71 I beleive. Using the early set will free up a good bit of low end tourque.|
|09-30-2008 10:23 AM|
1973 429 Thunderjet worth updating?
Looking or valued comments regarding this engine. It has been balanced/bluprinted with new hardware, but the heads stayed the same (190HP rating). Does it make sense to put new 10:1 or 9:1 heads on it, with new manifold / carb / cam to increase the HP? I really was interested in about 350-450 hp ratings. It seems I could get into this for about $3500 vs a new crate @ $6500. But looking for your advise. Thanks. Steve