89comanchekitch Posted March 11, 2019 Posted March 11, 2019 I am rebuilding an 89 Comanche with a 4.0 straight six. The engine is getting built from the ground up(middle of the process now), and i need help with header/ exhaust tube size. It's bored 60 over with a comp cam and the goal is trail rig. What would be ideal size for max horse and healthy for the engine? thanks!
SatiricalHen Posted March 11, 2019 Posted March 11, 2019 I am rebuilding an 89 Comanche with a 4.0 straight six. The engine is getting built from the ground up(middle of the process now), and i need help with header/ exhaust tube size. It's bored 60 over with a comp cam and the goal is trail rig. What would be ideal size for max horse and healthy for the engine? thanks! My engine is similar except it’s only .030, with a few intake and fuel mods. Everyone suggested staying stock 2.25” exhaust for my truck. Sent from my iPhone using Tapatalk
SatiricalHen Posted March 11, 2019 Posted March 11, 2019 What head and intake do you plan to use?Sent from my iPhone using Tapatalk
Jeep Driver Posted March 11, 2019 Posted March 11, 2019 27 minutes ago, SatiricalHen said: My engine is similar except it’s only .030, with a few intake and fuel mods. Everyone suggested staying stock 2.25” exhaust for my truck. Sent from my iPhone using Tapatalk Not everyone.
89comanchekitch Posted March 20, 2019 Author Posted March 20, 2019 I was planing on running the stock intake and I have a new stock head
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now