4.0 liter high compression pistons?
Hello folks,
I am wondering if anyone know of a source whee I can get 11:1 CR pistons for the rove 4.0. I am interested in building this and the only pistons I can find are the forged ones. Does anyone know of a source where I can acquire pistons for this engine? I currently have the 4.0 with 9.35:1 CR. thanks! Edited 1 time(s). Last edit at 07/22/2010 05:12PM by ztriumph. |
Re: 4.0 liter high compression pistons?
Hi,
What forged 4.0 pistons have you found, source and price please, I am looking to move to 4.0 or 3.9 Rover from the 3.5 for next year and would prefer forgings, standard bore would be handy as well. Thanks in advance. Alan |
roverman Art Gertz Winchester, CA. (3188 posts) Registered: 04/24/2009 11:02AM Main British Car: 74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L |
Re: 4.0 liter high compression pistons?
I suggest you try the search feature here.This has been covered in-depth, ie. "D and D", likes the 255" V8 Ford piston. VW Type IV is available in forged. Good Luck, roverman.
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minorv8 Jukka Harkola (269 posts) Registered: 04/08/2009 06:50AM Main British Car: Morris Minor Rover V8 |
Re: 4.0 liter high compression pistons?
There are flat top Mahle 94 mm pistons available for VW beetle engines , IIRC they were with the 24 mm pin as 4,0/4,6 litre engines and the comp height was just about right. They have coated skirts and look quite nice. One UK engine builder advised against using them because VW engine is air-cooled with cast iron cylinders and Rover is obviously water cooled alloy block. Something to do with different design specs vs. thermal expansion etc. I do know that locally they are very popular in Pinto rally engines so they should work just fine.
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castlesid Kevin Jackson Sidcup UK (361 posts) Registered: 11/18/2007 10:38AM Main British Car: 1975 MGB GT Rover V8 4.35L |
Re: 4.0 liter high compression pistons?
Zack,
These are worth a look. [cgi.ebay.com] ... You need to bush the rover rods 100 thou. and check the match of rod length and compression height, i know you can make them work with a 4.6 crank and 4.0 rods. Maybe find a 4.6 crank? Kevin. |
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minorv8 Jukka Harkola (269 posts) Registered: 04/08/2009 06:50AM Main British Car: Morris Minor Rover V8 |
Re: 4.0 liter high compression pistons?
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MGBV8 Carl Floyd Kingsport, TN (4514 posts) Registered: 10/23/2007 11:32PM Main British Car: 1979 MGB Buick 215 |
Re: 4.0 liter high compression pistons?
Of course. Thanks, Kevin
I believe that the 255 Ford piston that Art mentioned is used in a stroker build. |
roverman Art Gertz Winchester, CA. (3188 posts) Registered: 04/24/2009 11:02AM Main British Car: 74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L |
Re: 4.0 liter high compression pistons?Yeah baby !
You heard it here-first ! Diamond Racing Pistons webb-site, inventory reduction sale(-50%).List $76.70ea. They show 76 pistons in stock. 3.700" bore with 1.220" comp. dist. You get to do math for rod/stroke, to make it work. Good Luck. roverman.
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