: what headers to buy for a SBC in an FJ40?


500 HORS
09-27-2002, 08:27 PM
Anyone know what they used - ie a mfg, P/N.
Stock Frame, prefer dual exhaust out the back, unless a crossover and single muffler gets the same/similar torque/HP.

Maybe recommend a muffler too.

I believe 1 5/8" primaries and 2 or 3" collectors would yield the performance I desire.
These are for a TPI motor w/510 lift cam. Smog is NOT needed.

thnx.

orangefj45
09-27-2002, 08:41 PM
advanced adapters sells a set, but i would run manifolds just the same. more clearance, less noise, and way less gasket trouble. who cares about the extra 5 HP you'll get out of those $500 plus headers anyways?:confused:

500 HORS
09-27-2002, 09:34 PM
I've got some old rams horn style cast mainfolds, but would have to whack off the cool mounting (alt,P/S) tabs on the front to run em.
These were used on early P/U's and corvettes.
If I do this Is there a performance difference on the single vs. dual exhaust?
Maybe a smart guy just runs em, I'm wondering if they'll flow adequately enough for the TPI.

ouibus
09-27-2002, 10:25 PM
If the rams horn manifolds that you have are from a Chevy truck, then you might want to step up to a different style exhaust manifold. But, it the rams horn manifolds that you have are from a corvette, then I would say to run them. The reason being for this is the truck style rams horns are 2" collector and the corvette style rams horn are 2.5" collector.

If you are looking for decent set of headers for your TPI engine, I used a set of block hugger headers from Southern Rods and Part out of North Carolina. They are shorty block hugger style, that are Jet Hot coated inside and out. I picked them up for $174.50 plus shipping. They are beautiful to look at and pretty well made. I haven't had a chance to run them yet since my rig has not been started up in a while, but they are mounted up for when I do start her up. I can get you there number if you want. Just let me know. I can also take a pic of what mine look like mounted to the engine. HTH Thomas

ouibus
09-27-2002, 10:41 PM
Almost forgot, as far as a muffler is concerned, I would say to use a Flowmaster. It would sound awesome with your TPI engine. But I am biased in that department, I have always used Flowmaster.

Mark '73 FJ40
09-28-2002, 12:00 PM
Somebody posted the Summit generic shorty headers part number that is supposed to work perfect. Try doing a search for it. I think they were $99.

72rockcruiser
09-28-2002, 02:45 PM
This is just my opinion but i really really regret putting headers on my 350. should hve done manifolds, but i was young and dumb (still am i guess) and wanted as much power as possible. I actually used the conversion headers from specter (nothing but block huggers) and still had to modify the two center tubes to clear the factory steering box.
kyle

Hillbilly
09-28-2002, 02:57 PM
A good free flowing single exhaust will flow just as much as a true dual exhaust, plus it's easier to run one pipe versus dual pipes, and keep it out of harms way on the trail. Personally I like manifolds for everyone of my vehicles except the ones built for the street.:p

FJ-Dave
09-28-2002, 07:58 PM
If you're interested, I've got a set of fenderwell headers that i will trade you for the rams horns if they are the 2.5" outlets. I took these off my cruiser when I pulled the motor, they didn't leak.
Let Me know....

ranger
09-28-2002, 10:15 PM
One thing about headers, they don't leak when you first get them, but watch out, cause they are going to! Personally I think headers are more pain than they are worth, either its the collector gasket that blows out, or the flange bolts work loose and cause the header to head gasket to blow out..... Once they warp, forget it, the old two gasket trick only fixes the problem for a while.....
I would use Ram horn exhaust manifolds, you can still pick these up new from places like Chevy Duty. Or you can try searching the bone yards for the old 60's pickups that might have a good one on it.:skull:

FJ-Dave
09-28-2002, 11:44 PM
the corvette type are still available from Chevrolet for around 120 a side, some aftermarket companies ask almost twice that much.
there are new header fastener locks that will prevent flange bolts from backing out.

Mark '73 FJ40
09-29-2002, 10:09 AM
The reason everybody has trouble with headers is because they don't put the right silicon on the gaskets. Both sides. I use that Copper seal stuff and haven't replaced my gaskets in two years and they still don't leak.

rockdawgfj40
09-29-2002, 07:19 PM
i run rams horns they work great:fj:

Beanz2
09-29-2002, 09:50 PM
I used to run blockhuggers that were ceramic coated in and outside. 2 1/2" pipes into one. On the first run on the 'con the right motor mount rubber melted, the wiring harness loom on the passenger side and a harness plug melted. They were at least 3" away from the headers. To top it all, the hood was too hot to open with bare hands :eek:

I got rid of the blockhuggers and now I run ramshorn manifolds

Dave

fjdan
09-30-2002, 12:06 AM
use block huggers they fit good and stay way up out of the way i have used some hedman ones for years now

2car
09-30-2002, 04:28 AM
My rig had headers on it when I bought it. They suck. It is probably due to the abuse they have copped from hanging slightly below the frame rails. Thay wer not well thought out, and are not of very good quality. I want to change to rams horns if I can find some, but any stockers will do.

DCruiser138
09-30-2002, 01:00 PM
[i]and still had to modify the two center tubes to clear the factory steering box.
kyle [/B]

hahaha thats yur problem....stock steering box!

anyhow....i used the block huggers. they fit nice w/ my sagi steering shaft and all. they dont leak bad or anything....i used a flowmaster i got from dogwalker....it sounds nice. gimme a call and ill drive it over there and git you yur quadrajet back and you can scope my rig. ill pm ya in case you lost my #. peace!

fc187
09-30-2002, 06:48 PM
Hey Craig, whats up!

so is the rig getting close?

Don

500 HORS
09-30-2002, 09:15 PM
Damn fellows thnx for the input!

I think since $ is always an issue and I do have the rams horn I'll start with them and do the cross under to a single.

Don,
My shit aint progressing very rapidly. I scored a TPI motor, but its on the stand. I found a wealthy doctor that wants my current vette SBC, and saw it as an oppty to get out of the carb world.

DCruiser138
09-30-2002, 11:55 PM
hey...yur pm box is full. as far as the single exaust deal, i paid 150ish for a y-pipe under my oil pan back to a single flow. its nice...i like it. ttyl craig!

cruzila
10-01-2002, 01:20 AM
I would agree on the manifold. Unless you want that Cool factor or are trying to mud or sand drag, it is more practical to go with the ramhorns.

fc187
10-01-2002, 09:00 AM
Originally posted by 500 HORS




Don,
My shit aint progressing very rapidly. I scored a TPI motor, but its on the stand. I found a wealthy doctor that wants my current vette SBC, and saw it as an oppty to get out of the carb world.

Hey Craig, do you have a new e-mail address? your e-mail wouldnt go through and your PM box is full?

e-mail or PM me

Don