New purchase--74 f250 w/ 400M &c6

nlauffer · Post by **nlauffer** » December 14, 2009, 12:37 am

I just picked up my 74 F250 today. The motor is a very strong 400M with a good C6. Paid $350 for the whole thing. 400 & C6 will go in my 66SB.

I am wondering if anyone else has put a 400M in a Slick? If so, what were some issues, if any?

How easy is it hook up the newer ignition in my 66?

also pics of 351/400M's installed would be great.

36truck · Post by **36truck** » December 14, 2009, 10:39 am

Love them Dentsides. The 400 should bolt in with ALL the mounts from the 74 if they used the factory one to put it in the 74. A 400 was not an option in 74 came out in 77.
Wiring in the Duraspark is easy. Here's directions

http://www.therangerstation.com/tech_li ... arkII.html

rbcyouthdude · Post by **rbcyouthdude** » December 14, 2009, 4:15 pm

I have a 400 in my truck. bought it that way. It's ok but would rather have a 300. Dang my age is showing.
If you need photos let me know what you want. I have the three speed tranny.

nlauffer · Post by **nlauffer** » December 14, 2009, 8:18 pm

I plan on using new motor mounts. I would assume I need to move the engine perches to the other set of holes on my 66. Can I use the perches that attached to my 240 or do I need to snag the ones out of the 74?

nlauffer · Post by **nlauffer** » December 14, 2009, 8:20 pm

rbcyouthdude, do you think you could take a couple pics of the engine compartment. maybe one from each corner of the front. so i can see how much room is in the slick.