1. Was the 4.2 derived as an even fire 60 degree v6 or was it developed off the small block v8 like the gm 4.3?

2. Is it an evenfire v6?

3. Does it have a roller or standard cam?

4. Are the rocker arms stud or shaft mounted?

5. Is the crank forged or cast? Is it a common pin or split pin crank?

6. Are the rods or pistons interchangeable with the 5.0? or 351?

7. Are 5.0 or 351 valve train parts interchangable with it?


Thanks all

 

1. Developed from a small block v8.

2-7=Joe, Brian, Garret, Tom, Cameron I need some backup

 

I'm thinking of buying a 2000 or 2001. One possibility is getting the 4.2L. Buying a truck partially because I don't want a SOHC Explorer of the same vintage with timing chain problems. Usually buy 90-100K and drive another 80K. I've had good luck with the 4L V6. It seems the longer chain length of a SOHC inherently causes problems. Are there any problems with the timing chains in the 4.2L at real high mileage. Hate to pull an engine just for a chain.

 

1. The 4.2 is a 90 degree V6 very similar to small block V8's
2. Yes it is an even fire engine
3. It has a roller cam
5. The crank is cast steel, split pin
6. You can use 351W rods, but you'll need custom pistons
7. Hydraulic roller lifters from a 5.0 are the same as ours. Not sure if any other parts are interchangeable

The timing chain is inside the front cover so you shouldn't have to pull the engine to change it. But it should be good for well over 100k

 

2=Evenfire
3=roller
4=Stud
5=cast
6=351
7=nope

 

I must admit that I have never even seen this engine. I read in another post that this was an SOHC engine. Evidently, it is the older pushrod technology.

 

Oops..yes that can make things a little confusing. If you want an idea of what this engine looks like just pop the hood of any car with a SBF (not a modular) and it looks very similar (a little shorter). It even uses the SBF bolt pattern for the transmission bellhousing. The 4.2 is a good old fashioned pushrod motor. If you decide to swap to a better cam you only have to get one

I see your from Cincinnati...whereabouts? I'm up north in Blue Ash

 

Just on the western edge of Mt. Airy Park. Yea, it's time to get another vehicle at the Cincinnati Auto Auction. Got five other cars there. Last vehicle was a 97 Explorer 4DR 4WD three years ago for $5200. Put 60K on it and now the better half wants it. Should take about 3 months to find the right truck at the right price. I gave up my 75 Ford PU a couple years ago since I would only drove it every six weeks. $300 and I drove it for 12 years. Put a timing chain in it at about 200K and that was the best thing I ever did. Idle vacuum increased 2" and it would get better than 17MPG highway with the 302.