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What is the volume of the 3.0 liter head?
What is the big end ( crank journal) diameter? I'm still working up a rod/ piston/ bore size combo to get to 9:1 c/r for boost.
It seems that the good old 4.6 V8 piston is close in bore size 90 vs. 89 mm and pin diameter and compression height is dead on.
Manifold pressure is good :rolleyes:
TIA
Jorge
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Hey good find on the V8 piston! This might work out pretty good since there are plenty of forged pistons out there for the 4.6
I'll have to check when I get home to get those specs for you. What about the RW pistons? Not going to try those anymore?
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On the rollerwave front , we need six sets  .I wonder what the dish is on the 3.0 piston is...the stock 4.6 is dished also. I wouldn't be suprised if it's the same , but at least we will be a lot closer to a boosted 3.0 than we think peace Jorge
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Originally posted by FLACOMAN: On the rollerwave front , we need six sets .I wonder what the dish is on the 3.0 piston is...the stock 4.6 is dished also. I wouldn't be suprised if it's the same , but at least we will be a lot closer to a boosted 3.0 than we think
peace
JorgeWhat's the rod length and stroke on the 4.6? On the 3.0? I have those in the FRPP catalog at home, but if someone knows them, we can figure mathimatically (SP?) what the head volume is... As long as the rod length and stroke are the same, with the same pin to hat height... this could be the find of the century for really big honkin HP in a Contour. Happy happy joy joy...
Brad Noon '99 SE MTX 3 point oh my God H.O. 179HP/178TQ BNMotorsports Floormats, powder coating, TB optimizing, Gutted cats, etc BNMotorsports is now the preferred distributor of Contour/SVT/Mystique Indiglo style gauges!!!bnmotorsports@msn.com
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According to Dave's 3 liter FAQ , the 2.5 head volume is 45 cc. We need to find out what the 4.6's chamber volume is.Still, having come commonality should let us sneak in some Mustang parts.Pin to hat height is dead on between the two. 
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Here are the measurements for the two engines:
4.6L:
Bore:3.552
Stroke: 3.5433
Bore Spacing: 3.9370
Main Journal Dia.: 2.6572
Rod Journal Dia.: 2.0863
Con Rod length: 5.9331
Crankshaft Center line to deck: 8.9370
Compression Distance, Piston Pin to top of piston: 1.2205
3.0L
Bore: 3.504
Stroke: 3.2199
Bore Spacing: 4.0157
Main Journal Dia.: 2.4795
Rod Journal Dia.: 1.9677
Con Rod length: 5.4370
Crankshaft Center line to deck: 8.1890
Compression Distance, Piston Pin to top of piston: 1.1811
--Matt
00' SVT Contour, Black and Blue #954 of 2150
Stock....
2003 Red Fire Convertable Cobra due in September...
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Holy Jeez...I cant believe how cool this web site is....I dont even know what the heck you guys are talking about...but I'm still getting all excited!!! (want to do the 3.0) I guess I need to find a life somewhere...ha ha Seeya, and keep those brains workin! Mike
Seeya
FUseface
"Superhero Extrordinaire"
"I am Nigh-Invulnerable!"
97 LX Sport
AIM:MiguelAD8
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Originally posted by mmars:
Here are the measurements for the two engines:
4.6L:
Bore:3.552
Stroke: 3.5433
Bore Spacing: 3.9370
Main Journal Dia.: 2.6572
Rod Journal Dia.: 2.0863
Con Rod length: 5.9331
Crankshaft Center line to deck: 8.9370
Compression Distance, Piston Pin to top of piston: 1.2205
3.0L
Bore: 3.504
Stroke: 3.2199
Bore Spacing: 4.0157
Main Journal Dia.: 2.4795
Rod Journal Dia.: 1.9677
Con Rod length: 5.4370
Crankshaft Center line to deck: 8.1890
Compression Distance, Piston Pin to top of piston: 1.1811
--Matt Thanks Matt. Anybody know the comression ratio on the 4.6 or the head volume? One variable away from knowing what piston to get...
Brad Noon '99 SE MTX 3 point oh my God H.O. 179HP/178TQ BNMotorsports Floormats, powder coating, TB optimizing, Gutted cats, etc BNMotorsports is now the preferred distributor of Contour/SVT/Mystique Indiglo style gauges!!!bnmotorsports@msn.com
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The compression ratio for the Mustang GT 4.6L is 9.0:1
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Here's the poop on the piston I found.... Refer to part # H3135 Silvolite pistons
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