Is 540 too much for a Gen VI ?
Got my plan, parts, & builder to go 540 on a HP500. Pulled the engine, popped the heads and and noticed the sleeves were missing!
Oh wait, let me get a magnifying glass, there are sleeves in this GenVI. Is it really safe to bore these .0030 over to 4.5"? They're paper thin stock. Anyone tried chrome or nickacil for reliability? Should I find a Gen IV block or am I just paranoid parting with my 10K? :readinghelp: |
I have known lots of guys that have turned Gen VI 502's into 540's.
Darrell. |
Paranoid. No problem going .030 over.
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.30 over is fine in a Gen VI block theyre a pretty strong block
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Umm, They don't have sleeves from the factory. Someone put them in because they one must have hurt the engine in the past. Gen VI blocks can go .60 over easy. I have a buddy running .100 over making about 700 hp right now and now problems for several years.
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Originally Posted by wfo1
(Post 2944876)
Umm, They don't have sleeves from the factory. Someone put them in because they one must have hurt the engine in the past. Gen VI blocks can go .60 over easy. I have a buddy running .100 over making about 700 hp right now and now problems for several years.
Anyone heard of a Gen VI 540 making it to 400 hours?:readinghelp: My plan is mild, just 9.3 to 1 comp & 5200 rpm, If I only get 580hp I'm still happy. Longevity is the main concern. |
Originally Posted by FrankRizzo
(Post 2944894)
If there were no sleeves they would have to be nickasil, not gonna make 700 hp with rings running on castiron (not for very long anyway).
:lolhit: Anyone heard of a Gen VI 540 making it to 400 hours?:readinghelp: |
Used the wrong term "cylinder wall" thickness is my concern :drink:
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Originally Posted by FrankRizzo
(Post 2944932)
Used the wrong term "cylinder wall" thickness is my concern :drink:
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Most of the CI increase comes from the 4.25 stroker crank. Only a few (7 or 8) CI are gotten from borring .030 over. A lot of guys bore .060 over. I would not go more than that.
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