Sorry can't decode the tag but drove one of those back in high school. It was a 240. Old Bell telephone van. Glad that thing couldn't talk, at least back then. Would love to have another.

try www.fordsix.com, look at their 240\300 section. i follow the 200 section for my 6cyl engine
 

No hands-on experience with "souped-up-six-stuff" but the H.A.M.B. has lotsa info!
Standard hop-up stuff should apply..........induction/exhaust first
                                                                  ignition next
                                                                  compression/heads/cam next
Then work on ways to get the added power to the ground....and stop it!!

'If it were me'.....I'd get a tape measure busy
6sal6

My thoughts would be find a 4.9 (EFI version of the 300).  That engine was a MONSTER.  You probably wouldn't even need to do anything to it performance wise.  If you wanted more power my thoughts would be save money on the NA parts and just bolt a turbo onto it.  Its got enough bottom end that you could size the turbo to help mostly in the mid/upper RPM range where it needs help.  Then you could call it an Econofine (I want credit if you use that). 

My wife’s 79 F150 4x4 has 300/ 4 speed/ Offenhauser 4 barrel intake/ Holley Off road Avenger/ stock exhaust manifold with 3” exhaust out the back (increased down near bell housing).

That’s how it was purchased.  Don’t have specs on camshaft…I’m guessing it is still stock truck cam.
Still haven’t checked what gear ratio’s.
It has plenty of torque.

Doesn’t really need the off road carb for our purposes.
It’s fun as is.

I would suggest a 90’s Efi 300 (4.9L), should be plenty around from engine swaps or old work/farm  trucks.

I think non T5 5 speeds were also available behind these engines.  Have no idea about size of them though.

Last edited by Nos681 (11/13/2021 11:42 AM)

Looks like the 240/300!shared same architecture.

https://www.enginefacts.com/ford240/

Learned some thing new.


The early 300’s had single log exhaust. And single log intake.

Later model 300’s had x2 exhaust manifolds (x3 + x3).
Saw this on a efi 4.9L (300) in a 92 truck a couple of years ago.