need help with building an motor

Reply Subscribe

Thread Tools

Search this Thread

Mar 13, 2005 | 10:04 AM

94btfrdtuf

Thread Starter

New User

Joined: Mar 2004

Posts: 13

Likes: 0

need help with building an motor

ok well my 1994 f150 302 is getting a little tired so i been loking for a new block and i think i found one for a good price but the only problem is the block is out of and older car. I wanna know is will it work in my truck. I want to keep it emmisions legal ,so i cant convert over to carb. Really I wanna know if my intake will bolt up and work on this older block. I dont mind changing parts to make it work. if it helps the truck is non-MAS air. Thanks for the help.

Mar 13, 2005 | 06:30 PM

ken75ranger

Elder User

Joined: Jan 2004

Posts: 819

Likes: 0

From: Troy,NY

The intake should be good. How much older is it? See if you can get the casting number for the block. It's under the starter. If it's a mid 70's-mid 80's it not going to have very good heads. You might not gain a thing. Get those numbers. The other thing to look at is the EGR. Might be in the heads might not.

Mar 13, 2005 | 06:35 PM

94btfrdtuf

Thread Starter

New User

Joined: Mar 2004

Posts: 13

Likes: 0

the motor is a 1974

Mar 13, 2005 | 08:02 PM

dimariar

New User

Joined: Nov 2004

Posts: 12

Likes: 0

From: Fort Indiantown Gap, PA

Make sure the block is a roller cam block. They strarted to be manufactured from the mid eighties on. You might want to rebuild your current engine with the help of a [U]good local rebuild shop. I have also seen real horrer stories from folks who bought rebuilds thru pep boys, advance & other chain store auto parts places. I hear Jasper & Ford remanufacturers are good.

Mar 14, 2005 | 06:43 AM

ken75ranger

Elder User

Joined: Jan 2004

Posts: 819

Likes: 0

From: Troy,NY

Good point. If your '94 is a roller motor your not going to be able to put in the '74 without a lot of work.

Mar 14, 2005 | 10:36 AM

Kemicalburns

Hotshot

Joined: Jul 2002

Posts: 14,285

Likes: 12

From: Bend,OR

swap in a 5.8 , finda complete motor at a wrecking yard. its a basic swap needing no modifications . pm for further instructions

Mar 14, 2005 | 06:00 PM

Janet40

Elder User

Joined: Dec 2002

Posts: 713

Likes: 1

From: Houston U.S.

Either rebuild the engine you have now (the 94 302), or get a good running used or rebuildable 88 up 302 engine and put in there. As a 1974 302, it may seem simple at first, but once you get going, you will be changine this that this that and this, and the chain reaction will began to make you sick, just too much difference in a 94 Versus a 74

Janet