2v to 4v conversion? - Ranger-Forums - The Ultimate Ford Ranger Resource

General Technical & Electrical General technical and electrical discussion for the Ford Ranger that does not fit in any other sub-forum.

LinkBack Thread Tools Search this Thread
Old 02-09-2007
b3kbruiser's Avatar
Thread Starter
Join Date: Nov 2006
Location: DFW Area, Tx
Posts: 713
2v to 4v conversion?

The 390 in my F100 is the 2v model, and rated at 265hp and 360ft lbs of torque. The 4v is something like 350hp and 400ft lbs of torque, so I'm thinking, is there any way to do a 2v to 4v conversion? It seems to me like it's just involve finding matching heads in good shape from a junkyard 390 and swapping the heads, it's also be a good excuse to make sure the head gaskets are good. Would I need to swap the pistons out as well?
Reply With Quote
Old 02-10-2007
Join Date: Jul 2005
Location: Las Vegas, NV
Posts: 80
It would involve a little more that just swapping out the heads. their not talking about the valves in the heads, it's a complete different shortblock when they say 2V, It's Ford 2-barrel carburetor which flows 351 cfm and uses regular fuel because the pistons give a lower compression ratio (9.5:1) than 4V engines. That's why the 390 2V is only rated at 265 bhp @ 4100 rpm. If modified for performance, 4V pistons and other pieces from that engine must be installed. the 4V had higher compression ratio and required premium fuel I beleive. standard 390 4V had 315hp & 390 4V GT had 325 I think
Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
want to know conversion tried conversion calcs already aford89 Wheels & Tires Semi-Tech 17 03-29-2009 02:09 AM
4x4 conversion mersingt New Ideas 41 03-23-2007 11:46 PM
front end conversion kits? BananaEdge Exterior Semi-Tech 13 11-12-2006 07:35 PM
1995 Ford F150 with Regency conversion package. PickupMan92 General Ford Ranger Discussion 1 08-05-2004 03:27 PM
XLT Front end conversion? Bailey New Ideas 11 08-03-2004 05:52 PM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

All times are GMT -6. The time now is 05:27 AM.

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.