Contour Enthusiasts Group Archives Forums Modifications 3.0L Duratec Specs for 3.0 and svt heads

Does anyone have any info on the specs for each of these...like valve sizes and cubstion chamber size and what ever else is involved. I have a shop that is gonna do the swap for me and we are trying to figure out which heads to go with. No matter what we are gonna do head work but we are trying to see where is the best place to start.

I have this stuff at work, if no one posts it before then, I'll get it for you monday.

My $.02 If you are going to use the 3L short block, use the 3L heads. If you need more compression, have the heads milled a little (though I say that not knowing how much milling the heads can take) to bump the CR. The 3L ones do have larger vlaves.

Hey rara thanks a lot i def appreciate it.

yes please post that info- i need it for my work.

Next question in this line would be: What aftermarket cams are available for the 3.0? Anyone? I'm looking for a 3.0 now and I was going to use the SVT heads because of cam timing, but I could make more power w/ bigger valves and a better bumpstick. Then I'll be happy.

AFAIK all duratech cams are interchangeable (excepting various waterpump drive changes between models)
also, AFAIK there are no "off-the-shelf" cams for the Duratec other than production ones. But I am sure you can get a reputable shop to get you some "regrinds" to your specs, but you would have to figure them out.

Rara, I was looking through old posts and was reading that their were some SVE cams that helped out min perfomance. Is their anyway that we could get the specs on those and find a company to make them?

doesnt David Z have some SVO cams with his 3.0L?

Lee, I'm sure that the cams could be made (though prolly lots of $$) if someone could get the right specs. David Z had some, but is probably unwilling to tear his car apart to measure them, and as of yet, I have been unable to find the actual specs of those cams. Further confounding matters, is that SVE had made a dozen or so different cam sets for testing, so finding which are the correct ones, even if I could get the specs, would be a crapshoot.

i can get you the specs... once you have a manufacturer lined up, drop me a line.

Ok, I'm having problems getting this to format correctly, so I'll explain it. This first pair of numbers is for the 3L and the second pair of #'s is for the 2.5L In each pair, the first number is the metric spec (most are mm) and the 2nd #, the one in ( ) is english, most are inches.
If anyone needs a better layout of the #'s, email me. (I threw a few other measurements in for fun )


Data is based on the 1999 SVT Contour 2.5L and the 2001 Taurus 3L

3L 2.5L

Bore mm(in) 89.0(3.5) 82.4(3.24)
Stroke 79.5(3.13) 79.5(3.13)
Bore Spacing (C/L to C/L) 102.0(4.02) 102.0(4.02)
Block Deck height 208(8.19) 208(8.19)
Block Length 396(15.6) 396(15.6)
Deck Clearance (minimum) 0.415(0.016) Below to 0.115(0.0045) Above
Cyl Head vol. (above gasket) cm3(in3) 48.2(2.94) 44.5(2.72)
Hd. Gasket thickness (compressed) 1.00(0.040) 1(0.034)
Min comb. Chamber vol (total) cm3(in3) 52.0(3.17) 45.1(2.76)
Valves Intake 35(1.38) 32(1.26)
Exhaust 30(1.18) 26(1.02)

Thanks RARA

I have in front of me Ford specs for both the 2.5 (doesnt specify a difference between SVT or standard) and the 3.0L Camshafts and other various components. According to Fords specs there is no difference in these cams. Does anyone have proof that the SVT cams are any different? Troy???

hey can you post those specs....even if they aren't the svt ones i still need them. thanks

would we be able to figue out what kind of cam we need with a Desktop Dyno program? I have it

Hey yankee can u burn me a copy of it. I am trying to do this on an old summit cd...not quite up to date. i have someone near buy ready to do me some regrinds.

Mine is also not new. They newest one is 2000. There is one in the Burn Out game. I think after tonight I can have a pretty good paper engine. But I think I going to get the 2000 this weekend. Ill tell you how it is.