4D56 Head Protuding vs. Flush Valves - Pirate4x4.Com : 4x4 and Off-Road Forum
 
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Old 01-10-2010, 05:24 PM   #1 (permalink)
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4D56 Head Protuding vs. Flush Valves

So I currently have a 4D56 head with protruding valves like the 4D55 heads. But, I was wondering if I could bolt on a 4D56 head with flush valves in an attempt to lower the compression ratio so I can add more boost. Will a 4D56 head with flush valves bolt onto my 4D55 block like The 4D56 protruding valve will or is there a physical difference besides the valves?
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1985 Mitsubishi Pickup, 2.3 H.O. Turbo Diesel, Watercooled Turbo, ported and polished 4D56 Head with Roller Rockers, Custom '83 Injection pump, JK Rubicon axles w/elockers and disc brakes, 14" Fox Coilovers, Centerforce II, 5.0 Atlas II, ARB Bull Bar, 33x12.50x17 General Grabber Competition tires
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Old 01-24-2010, 12:09 PM   #2 (permalink)
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Anybody, "Bueller, Bueller"

Any help would be much appreciated.

Spence
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1985 Mitsubishi Pickup, 2.3 H.O. Turbo Diesel, Watercooled Turbo, ported and polished 4D56 Head with Roller Rockers, Custom '83 Injection pump, JK Rubicon axles w/elockers and disc brakes, 14" Fox Coilovers, Centerforce II, 5.0 Atlas II, ARB Bull Bar, 33x12.50x17 General Grabber Competition tires
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Old 01-24-2010, 06:08 PM   #3 (permalink)
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Originally Posted by 4D55 Performance Inc View Post
Anybody, "Bueller, Bueller"

Any help would be much appreciated.

Spence
troll the AU, canadian, UK boards....4d56 wasn't really availible here in the US (most of pirate is US based)
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Old 01-26-2010, 01:30 PM   #4 (permalink)
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I think I will give the guys at pocuk.com a try.
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1985 Mitsubishi Pickup, 2.3 H.O. Turbo Diesel, Watercooled Turbo, ported and polished 4D56 Head with Roller Rockers, Custom '83 Injection pump, JK Rubicon axles w/elockers and disc brakes, 14" Fox Coilovers, Centerforce II, 5.0 Atlas II, ARB Bull Bar, 33x12.50x17 General Grabber Competition tires
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Old 01-26-2010, 08:03 PM   #5 (permalink)
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try pajero of victoria, 4x4wire diesel, outerlimits,
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