Maybe I should ask, would my 540 be better off with a 1050 rather than my original HP500 830?
Thread: Mercruiser 540ci 575hp
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01-23-2011 07:06 PMAbbysomeone
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01-26-2011 11:08 AM
Sorry, did I re-start an old thread?
Maybe I should refer to Rumrunner for Carb questions?Abbysomeone
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10-05-2016 06:15 AMHi all,
I know this is an old thread but I recently bought one of these 540cu/575hp engines with the la enterprises crank. I just bored it to 4.5" and am having trouble finding the correct replacement pistons, the 4.375" stroke throws me, I can't find much available to suit. I'm hoping to increase static compression to around 10:1. Can anyone help me out ? Cheers
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10-05-2016 06:37 AM
That's a tough one compared to the 4.250 stroke.
I think Mahle has an off the shelf piston in 4.5 x 4.375, but no idea how their piston/top design would impact your goal of 10:1.
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10-05-2016 08:39 AMI believe that Teague is a dealer for the LA Enterprise cranks. Call them out there, maybe talk to John or Cherilyn Teague, and see what they say. The LA cranks are made by Bryant and good pieces.
If you have any problems getting the info you need, and I doubt you will as they are very knowledgeable and professional, let us know. I have two other custom engine builders in this area I can chat with, but I trust Teague completely.
I'll shoot them an email letting them know you're calling.Getting bad advice is unfortunate, taking bad advice is a Serious matter!!
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10-05-2016 11:42 AMThey have read your post here and are expecting your call.
Good luck, and let us know what you find out. We're all curious now.Getting bad advice is unfortunate, taking bad advice is a Serious matter!!
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10-05-2016 05:54 PMReally appreciate the advice, thanks.
I'd better check the time difference, I'm in Australia!
I'll let you know how I go....
Cheers
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10-05-2016 06:00 PM
I'm curious too. There have to have been others who bored these to 4.50.
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10-05-2016 07:43 PMI will PM you Cherilyn's personal email address. Explain to her in an email who you are and she will put you in touch with John or?
Check your PM .Getting bad advice is unfortunate, taking bad advice is a Serious matter!!
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10-06-2016 07:20 PMDid you get my PM?
Getting bad advice is unfortunate, taking bad advice is a Serious matter!!
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09-07-2017 11:10 PM
G'day,
So it's been about a year since I lost this thread finding my pistons! I'd lost interest in the whole thing for a while after the guy I bought the complete engine from sold it to me as just needing a freshen up (ie - hone, ring and bearings). What I ended up with was very different!
Anyway,I rang the Teagues thanks, they were very helpful but there was nothing off the shelf they could do. So, I asked my local (Aussie) machine shop guy to come up with a solution, he used a set of forged JE flat top pistons and had to machine 40 odd thou off the top. He also re-machined the valve relief to suit. So I'm just getting into it again, I have prepped the block the machine work is done and its time to start bolting things together.
Cheers!
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09-08-2017 11:38 PMBest of luck. Keep us informed......
Getting bad advice is unfortunate, taking bad advice is a Serious matter!!