Newbie question on manifolds

Kermit460 June 22nd 2013, 6:16 pm

O.K. guys,heres my dumb newbie question.....I have a 73 Mach 1 w/ a 76 460 with D3ve heads,it has crites long tubes terribly low to the ground.Limited header choices,I know FPA makes a great set for 800 bucks.My question is ,would the 71 429 mustang exhaust manifolds fit the 460 heads if I were lucky enough to find a set?I know Lane Carey gets wicked performance from his car.Thanks in advance. Smile

samiam June 22nd 2013, 9:48 pm

Kermit460 wrote:O.K. guys,heres my dumb newbie question.....I have a 73 Mach 1 w/ a 76 460 with D3ve heads,it has crites long tubes terribly low to the ground.Limited header choices,I know FPA makes a great set for 800 bucks.My question is ,would the 71 429 mustang exhaust manifolds fit the 460 heads if I were lucky enough to find a set?I know Lane Carey gets wicked performance from his car.Thanks in advance.

if its a stock 429 they use the same gaskets as the 460

Manifold bolt pattern will be the same, stock cobra jet port size is 1.50 wide, 2.40 high, stock 460 port, 1.25 wide, 2.08 high.

Kermit460 June 23rd 2013, 7:41 am

Thanks!

jeffgfg June 23rd 2013, 9:01 am

Several sets on ebay now but they are as much as the FPA headers!!!

dfree383 June 23rd 2013, 9:07 am

there are shorts headers avaliable and also other brands like Hooker and Hedman

Kermit460 June 24th 2013, 2:58 pm

Thanks ,I know a guy on the mustang site that may have a set of used FPA's still available.I was just curious about the 71 429cj mustang ones cause they looked like they may have a pretty good flow without the heat & clearance issues.

dfree383 June 24th 2013, 3:11 pm

They are still marginal compared to a good header.

Kermit460 June 24th 2013, 6:20 pm

Thanks for all the imput guys,by the way is Lane Carey still racing that mustang in the F.A.S.T. series? I see he was a member here but not active for a while?

gary o June 24th 2013, 10:09 pm

I used some cj manifolds on some c8 heads (same exhaust ports as d3's) and the cj manifolds much higher port looks like it is too tall and would not seal to the non cj head but I gave it a try anyway and lo and behold it DID seal! There is only about 1/16 th of an inch of contact between the two but it does work. I thought I just got lucky but I have talked to a few other guys who did the same thing and it worked for them as well.

Kermit460 June 25th 2013, 4:21 pm

Thanks for the tip,I figured there had to be someone that tried this.

mitch July 7th 2013, 1:57 pm

police interceptor manifolds might be an option too they look very similar to the mustang CJ manifold and a lot cheaper too.

dfree383 July 7th 2013, 2:20 pm

Kermit460 wrote:Thanks for all the imput guys,by the way is Lane Carey still racing that mustang in the F.A.S.T. series? I see he was a member here but not active for a while?

I haven't talk with him in forever.

Kermit460 July 8th 2013, 7:47 pm

Thanks for the reply on that, I was interested in shooting the bull w/ him. Saw some articles on him & his car .We got the mustang & big block in common. Smile

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