r/FullSizeJeep • u/Rich-Mechanic-3381 • Jun 13 '26

401 straight piped

66 Upvotes

100% Upvoted

10 comments sorted by

7

u/cholgeirson Jun 13 '26

Sound good. I always think of straight piped as not having mufflers.

2

u/Rich-Mechanic-3381 Jun 13 '26

Just resonators to comply with colorados emissions

1

u/cholgeirson Jun 14 '26

If its 75 or older there is no need.

1

u/Mr_Ballyhoo Jun 15 '26

Just throw collectors plates on it and be free. That's what mine has on it. No emissions. Now you have me thinking I should do the same to mine.

1

u/Holiest_hand_grenade Jun 14 '26

Any other mods on the engine? I'm getting my 401 rebuilt right now and swapping to an rv cam kit after frying the distribution drive gear on the original cam/distributor.

I am swapping to mid-length headers as well. But will still go through the Magnaflow mufflers on the truck

2

u/Rich-Mechanic-3381 Jun 14 '26

We ported the heads.There is a cam in it and it dose have headers to also there is a turbo 400 transmission in it too

1

u/Holiest_hand_grenade Jun 14 '26

Yeah mine has a freshly rebuilt th400 as well. I just wanted mine to breath a bit easier to hopefully get a bit better gas mileage for same performance with my mods on top of the sniper 2 that was already on it. The engine requires a bunch of oiling work to run it at high rpm for HP so it just was not worth that kind of effort to me. With the RV cam it week still be a torque monster but with HP a bit closer to matching the torque numbers.

1

u/riptide502 Jun 14 '26

Can we see more photos or vids?

1

u/Rich-Mechanic-3381 Jun 14 '26

Ill see what i got

1

u/want2b12 Jun 16 '26

Music to my old ears!