First of all Im new. This board seems helpful. I have 2 mustangs, never owned anything non-ford. These are my first cars Ive ever owned. A 1987 4 banger mustang, and a 1986 351w powered machine. Im getting about $5000 out of them and Im looking into building a small/mid sized ford to be powered by a '6. Something like an explorer im hoping. I have an f150 drive line in the backyard (dana60 front and 9" rear). My questions regarding the 300 are:
-Can you oversize the valves by replacing them with existing parts? (off another engine)
-What are the port & valve sizes
-How much of the head can you mill down?
-Whats the bore/stroke?
-also the last things im looking for are piston pin diameter and rod journal diameter.
Thanks boys I hope to stick around.
-Al
p.s.-What trannies can I use..BB or SB? what are some types?

 

Welcome.

I believe I've read the answers to most of you questions in prior posts. Try multiple searches - one topic at a time. I'm having a brain cloud at the moment and am drawing blanks. Did Steve83 go on vacation?

Just did a quick check - last post for steve83 - 8/25/03 - you O.K. Steve?

 

Valves you can use 1.94int/1.60exh chevy valves
You can mill whatever being its an inline engine there are no intake issues however you have to keep in account the cam (lift) and compression you want.
piston pin diameter is .9752
bore 4" and stroke is 3.98
sfb trannies
Which year engine do you have efi or carb. You will figure out real fast that carb is the way to go if you want cheaper hp and tq. If you have the ability to make the efi work it would obviously make drivablity better, but the stock efi might get you to 250 hp it is limited to some degree again a good chunk of money will make it work, a well planned carb setup obviously radical could get you 300 maybe 400hp depending on what exactly your intent is, and the torque would be awsome. And good luck squeezing it into the explorer would make for an interesting vehicle. Good luck

 

Thanks. If a carb'd set up is the more desirable bang for a buck, then thats gonna be my road to take. I dont have a 6 cylinder. They are less desirable, therefore this equates to: Cheap, plentiful, and easy to locate. Is the EFI version limited by the choice of intake systems? Carbueration seems like it would be the best route, but most of the v6 harness could probably be put to use on the straight 6.
I just read theres a 240cid I6. Does anyone know if its any smaller then the 300, if so...is it any good?

 

efi is limited in the fact that the stock unit is the only system. The 300 and 240 are the same thing other than the 300 has more stroke so stick with the 300 it has more torque due to better rod ratio. V6? For the 1996 down ford trucks ford only made one v6 early 80 for one year I believe and it was carbed. Not desirable either. With the carburetor you can find and intake for every need. The efi isn't bad but when you figure in extrude honeing or custom intakes the price gets up there on top of new injectors, chips, etc. Good luck

 

hooray for carbueration. I have some forged 302 pistons sittin in a box in the hatch of my stang. The compression hieght is 1.6" and I have no Idea what the pin daimeter is...but it would be nice to use them. How much room is in the engine compartment of the first gen explorer anyways? What kind of power can the 250 make?
OT but I could do a body lift and move the engine back in the engine bay, also leaving room for hood clearance.

 

Do you have emissions laws in your area? If so, swapping to a carbed motor will be "illegal". The engine compartment will be tight, but if guys can swap a 300 into mid-'60s Falcons, the Explorer should be a cinch. Might have to run a pusher fan in front of the radiator.

 

No I live in BC, Canada. Only the lower mainland here (Vancouver) has emissions laws. I dont even think I need to run cats. None of my vehicles ever had them and Ive never had to get my air-care ticket.

 

to bad you don't live a little closer to Chicago. I have a sweet deal on a 4.9L

 

too bad yeah, If you dont mind..would you tell me if you modded it at all and what you did if you did?

 

Bone stock runs perfect with a 125K. Excellent oil pressure and ran cool on the stock gauge (between the n and o of normal) It came out of a 1985 and is complete including everything needed to swap out a 5.0L Body fell off the truck and am parting it out.