Notice: We request that you don't just set up a new account at this time if you are a previous user.
If you used to be one of our moderators, please feel free to reach out to Chris via the facebook Outerlimits4x4 group and he will get you set back up with access should he need you.
Recovery:If you cannot access your old email address and don't remember your password, please click here to log a change of email address so you can do a password reset.

More compression for 2f

Tech Talk for Cruiser owners.

Moderators: toaddog, Elmo, DUDELUX

Forum rules
Post Reply
Posts: 13
Joined: Sun Jan 31, 2010 5:48 pm
Location: Ravensthorpe WA

More compression for 2f

Post by hammer down »

Just wanted to know if anyone knows the valve to piston clearance in a 2f (valve open of course) so i can get a 2f block decked so i can up the compression a bit from the lazy 8.1 to 1 , to closer to 9.5 or 10 to 1. Or does anyone know of any company making high compression pistons for the 2f. Thanks.
Top
Posts: 1590
Joined: Fri Jun 03, 2005 7:07 pm
Location: Tarneit, Vic

Re: More compression for 2f

Post by matt.mcinnes »

hammer down wrote:Just wanted to know if anyone knows the valve to piston clearance in a 2f (valve open of course) so i can get a 2f block decked so i can up the compression a bit from the lazy 8.1 to 1 , to closer to 9.5 or 10 to 1. Or does anyone know of any company making high compression pistons for the 2f. Thanks.
http://www.man-a-fre.com/parts_accessories/pistons.htm
http://www.fj40-2f-eti-locked-n-loaded.com

Advanced (HB) Intercoolers
http://advancedhbintercoolers.com
Top
Posts: 443
Joined: Tue Dec 25, 2007 6:03 pm
Location: Tasmania, Australia

Post by vk7ybi »

Cant you put a F head on a 2F and get increased compression figures?
Top
Posts: 1590
Joined: Fri Jun 03, 2005 7:07 pm
Location: Tarneit, Vic

Post by matt.mcinnes »

vk7ybi wrote:Cant you put a F head on a 2F and get increased compression figures?
No the F head has an external oil feed I think to the head if I recall correctly.
http://www.fj40-2f-eti-locked-n-loaded.com

Advanced (HB) Intercoolers
http://advancedhbintercoolers.com
Top
Posts: 443
Joined: Tue Dec 25, 2007 6:03 pm
Location: Tasmania, Australia

Post by vk7ybi »

Maybe its the F155 head then, from 1973?
Top
Posts: 13
Joined: Sun Jan 31, 2010 5:48 pm
Location: Ravensthorpe WA

Post by hammer down »

I'm pretty sure the early 2f and f motor had a larger combustion chamber.
Top
Posts: 1590
Joined: Fri Jun 03, 2005 7:07 pm
Location: Tarneit, Vic

Post by matt.mcinnes »

hammer down wrote:I'm pretty sure the early 2f and f motor had a larger combustion chamber.
Also had domed pistons, later had flat top pistons.
http://www.fj40-2f-eti-locked-n-loaded.com

Advanced (HB) Intercoolers
http://advancedhbintercoolers.com
Top
Posts: 280
Joined: Tue Feb 16, 2010 1:21 pm
Location: Werribee

Post by MrGrim »

ive had the head on my 2f shaved and CC matched to 9.5to 1 and had no problems at all also all done for gas with hardened valves n seats

oh and i will be getting rid of it soon as im putting in a v8
71 fj40 front shackle reversal +3" , 55 rear springs +3", 35 15.5 claws , 60 diff's 4wheel disc's , SOON TO BE WINDSOR V8 + 5 speed
74 fj40 stock but very clean
84 bj40 3b stock and unloved
Top
Post Reply

Return to “Cruiser / Prado”

Who is online

Users browsing this forum: No registered users and 129 guests