02-10-2016, 12:24 AM | #21 | |
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Re: Head questions
Quote:
I will do a full rebuild, and I think I have time. I will put on the stock head though (after I work on that water hole) and see how it goes. I will rebuild; I can replace the head later. See, I DO listen to all you Barners. I just need to "talk it out".
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02-10-2016, 12:28 AM | #22 | |
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Re: Head questions
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02-10-2016, 12:59 AM | #23 | |
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Re: Head questions
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Thanx again for the advice. See? I DO listen to you guys. Then I proceed my own way
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02-10-2016, 03:59 AM | #24 |
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Re: Head questions
The shotgun comment was because the picture made the cylinders look rough, but it was most likely a very low resolution picture.
Stock bore is 3.875" and the picture shows the coolant hole close to the edge also, as though the cylinder has been bored quite a bit. |
02-10-2016, 10:16 AM | #25 |
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Re: Head questions
Sure nuff now I can see it's a head rather than looking down the cylinder. I also wouldn't be spending money on that head, but buy the 5.5 head instead. You could tap, plug and redrill the hole for no money, but if the head needs to be planed then just put the money towards the new 5.5 head.
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02-10-2016, 10:44 AM | #26 |
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Re: Head questions
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02-10-2016, 02:23 PM | #27 | |
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Re: Head questions
Quote:
So will a bore to 4.00 require different pistons or same stock pistons w different rings or stock size rings?
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02-10-2016, 02:34 PM | #28 |
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Re: Head questions
You need to get pistons that match the bore. If you bore it .125, you need +.125 pistons and rings.
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02-11-2016, 07:06 AM | #29 |
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Re: Head questions
H.L.M., Brattons 2015 catalog has .125 oversize pistons (Pg.40, #8310) for $ 89.95. Cylinder sleeves, std bore (3.875) are $30.75 each, This will require new 3.875 pistons. Rings are 39.65 a set. Also, you will need wrist pin bushings (4) at $1.85 each. I hope this helps you to figure your costs. I'm not recommending this, but you may be able to merely replace the rings into your old pistons. I would have to mike the bores to see if it's feasible.
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02-11-2016, 08:31 AM | #30 | |
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Re: Head questions
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Last edited by modelAtony; 02-11-2016 at 08:37 AM. |
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02-11-2016, 02:22 PM | #31 | |
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Re: Head questions
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10-10-2018, 02:21 AM | #32 |
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Re: Head questions
I read on this forum sometime ago that a Snyders 5.5 head could be raised to 6.1 by planing a certain amount off it. I cannot find the original post. Can anyone advise what this figure is?
Cheers, Gavin |
10-16-2018, 05:23 PM | #33 |
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Re: Head questions
Gavin,
Your question has been bugging me for a while. I looked up some old printer-outs from the ...'Barn. I'll give you most of what is on a 12/28/2004 message: posted by Dick Wyckoff, " I am running a Snyders 5.5? milled 20 thous- My builder Bill Garland of Sparta GA said taking 20 off the head make it about 5.9 He started doing that years ago and has no complaints- I can tell you it is peppier than the 5.5" Lou Earle Hope this helps and I might do this to a 5.5 head I have too. Bob- |
10-17-2018, 01:11 AM | #34 |
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Re: Head questions
Thanks for your research Bob. In a current thread titled "High Compression heads" two people have mentioned planing a 5.5 head, one by 50 thou and another by 100 thou. It would seem to me the amount one can plane will be dependant on whether or not the Pistons protrude above the block. I have a friend with a 5.5 head that needs 30 thou removed to straighten it and his piston protrude so Given your info I will proceed with caution.
Cheers, Gavin |
10-18-2018, 07:45 AM | #35 |
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Re: Head questions
I really don't like that head H.L.M is working with! I'd get another one, preferably a "C" head (uncracked) or a "B" head (Police head) You will be shedding a questionable , possibly junk, head for one with a built in higher compression Ratio. However, that being said, I have a head that i cut .040 and got a noticable difference from it, not huge, but it was better.
I would not be in a hurry to sleeve a block that doesn't really need it. Sleeved cylinders go back to the original bore size (3.875) and you lose whatever effect you were getting from the larger bore. Well it's all in the past now. I don't think that H.L.M. is waiting for our answer (From 2015?) All we can do is hope that it will benefit someone else. Terry |
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