CrossFire Injection project
Thread Starter
Intermediate
Joined: Mar 2024
Posts: 33
Likes: 47
From: Williamsburg KY
CrossFire Injection project
We have taken on a side project using a Crossfire injection setup. Usually, people take them off and go with a 4 barrel however due to a You Tuber making a suggestion, we decided to see if we can make it better rather than just replacing it. Below is a link to the video explaining the project and why we went down this rabbit hole. We have a couple other plans for the intake when it is done however if anybody has any suggestions, we are all ears.
Thread Starter
Intermediate
Joined: Mar 2024
Posts: 33
Likes: 47
From: Williamsburg KY
Melting Slicks
Joined: Mar 2002
Posts: 2,874
Likes: 764
From: Sligo PA
20 years ago there were a few people on the Cross Fire Injection forum who used an Offenhauser crossram intake to replace the factory CFI unit. I think it was the 5893. Anyway the rpm range on that thing is up to 7000rpm. I would love to see that project re-done by a shop and not in some guys garage. Not that there's anything wrong with someone being creative and figuring something out. But I would love to see a company put one together. I know they had the throttle bodies bored out and larger blades put in. The linkage was also modified to fit that intake. If I remember the one guy even got the factory air cleaner to work with it.
7th Gear
Joined: Apr 2018
Posts: 7
Likes: 0
From: Salt Lake City
I replaced the intake with a Renegade to move more air and kept the dual throttle bodies. The stock heads are also restricted so I replaced the heads as well then opened up the exhaust so the engine can breath. I also changed the cam and lifters.
Melting Slicks
Joined: Dec 2009
Posts: 2,232
Likes: 285
This is just a compact version of..
this. All the same connections minus 1 IAC valve. Let's you use any dual or single plane intake you want, so you're not stuck with ancient cross ram intakes with large plenums.
Advanced
Joined: Jul 2021
Posts: 68
Likes: 16
From: Michigan
what heads did you go with?
7th Gear
Joined: Apr 2018
Posts: 7
Likes: 0
From: Salt Lake City
I wish I could give you info on he heads. Mine were both cracked so the machine shop researched and came up with heads for it. The heads I have now sit a bit taller so my hood wouldn't latch with the top of the stock air cleaner so I had to build a top and kept the lower part. The intake and exhaust line up with these heads so I don't know where the added height is. I also had to change the rockers.
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