I see there are fender and chassis exit headers available for the '73-79 F-series of trucks. . .both for the 351M/400M (hers) and the 429/460 (mine).

What's the difference. . .I haven't seen either before?

Will be a basically stock appearing body and engine bay for the 400M, but the 460 will have a 1-pc. fiberglass front clip with flared front fenders and flared fiberglass bedsides (a desert truck) with the stock frame being cut-off behind the cab and a tube frame from their back plus a full cab roll-cage and tube engine cage tied into the stock frame.

Thanks!

 

Chassis exit run along the trans inside the frame rails
Fender exit run over the frame right in front of the cab mounts and run outside the frame rails

 

Sounds like chassis exit for hers and fender exit for mine.

Thanks!

 

I have the L&L fenderwell exit on mine and think they are great. I highly recommend them.

 

Inside the frame causes all kinds of possible issues when it comes to exhaust system time, especially if they dump out in front of the xmsn cross member.

I had set on a F150 4x4, was a pain putting exhaust sys on, and starter changes are a PITA.

Fenderwell is the way to go IMO, makes everything easier.

 

Fenderwell exits on mine:

 

I originally bought Chasis exit for my 460 but it didnt clear my deep sump oil pan so i had to go with fenderwell exits. Glad I made the switch.

 

Fenderwell exit next time around for me (this coming winter's resto). I've had Hookers on it for 25 years, and although they fit well and the kit that goes with them fits well, they are a pain for maintenance of any kind to the trans or t-case, and heat the tranny oil big-time because of the proximity to the pan. Fenderwells get rid of ALL the routing and maintenance problems- worth every penny from what I've seen.

 

Fenderwell exit next time here as well. Chassis exit have to work around the trans crossmember, and makes your exhaust hang too low.

 

Dude that Squidbillies Tat is awsome! Hahaha I love it.

 

Thanks. Still one of the bests tats I have (Well, it gets the most reactions at least...)

 

Hmmm. . .I'm thinking I should probably go with the fenderwell exit headers for both the 400M for her truck and for the 460 for my truck.

Thanks guys!!!

 

Agreed.

 

There are 3 things that I do not like about fenderwell exits though...

1) They are very close to the flex line for the brakes on the front axle (where the hard line comes from the Prop. valve to the connector on the frame for the rubber line).

2) You need at least a 4" lift and/or bumpstops to keep your radius arms from smacking the headers.

3) You have to adjust your steering stops so your tire won't rub them.

 

Not a problem for mine as I'm converting to a TTB front end and will have to redo all of that anyway. . .

. . .hers already has the lift and relocating brake lines is cake. . .so the steering will be the only issue.

Thanks for the heads up!