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Sleeving a 200

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Sleeving a 200

Post #1 by Matthew68 » Thu Aug 08, 2019 1:59 pm

I just got a call from my machinist who has disassembled and assessed my 68 200 block. Cylinder #1 has a lot of ring damage that will necessitate either:

1. Overbore of 60 thou (30 for the other cylinders)
2. Overbore of 30 thou plus a sleeve for #1

He said it's also possible #6 will need a sleeve, but they won't know for sure until they bore.

Thoughts on sleeving? It’s fairly cost effective ($105/each). I can’t find any blocks near me for that price and even if I did there’s no guarantee that one won’t have issues. Plus I would be in more labor for disassembly and cleaning.
1968 Mustang Coupe 200ci - Pertronix + Coil
Gulfstream Aqua - Interior + Exterior

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Re: Sleeving a 200

Post #2 by xctasy » Thu Aug 08, 2019 2:46 pm

dooo it. :P
XEC Ltd ICBE's Inter Continental Ballistic Engines-
FAZER 6Bi (M112 & EEC5) or FAZER 6Ti (GT3582 & EEC5) 425 HP 4.1L/250 I-6
FAZER 6V0 3x2-BBL Holley 188 HP 3.3L/200 I-6 or 235 HP 4.1L/250 I-6
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Re: Sleeving a 200

Post #3 by wsa111 » Thu Aug 08, 2019 3:55 pm

I agree with X. #1 cylinder is sometimes thin facing the water pump. Then .030" over pistons in all 6 cylinders.
67 mustang,C-4, with mod. 80 hd, custom 500 cfm carb with annular boosters, hooker headers, dual exh.-X pipe, flowmaster mufflers, DSII dist. MSD-6425CL & MSD-Blaster 8252 Coil. Engine 205" .030" over with offset ground crank & 1.65 roller rockers. 9.5 comp., Isky 262 cam.
2003 Ford Lightning daily driver. Recurving Distributors.

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Sleeving a 200

Post #4 by chad » Thu Aug 08, 2019 5:07 pm

2X the 2 above ( smarter move, cheepest now) BUT...
get all the info U can & keep safe.
ie how thick is the sleeve, how much bored to insert, what co, differences in hone or pistons, etc?

I hada Subie in late 70s I heard wuz OEM an alu block w/steel sleeves, nuttin wrong wid da design !
may B no block'n just sleeves? (butter? paper?)...
"Big thing is only make one change at a time. Change 2 or more things at a time it becomes difficult to figure which change helped or hurt" turbo2256b » 1/16/2017
Chad - '70 LUEB on '77 frame (i.e. PS, D44, trapezoidal BB 9", 4.11), '69 250ci, NV 3550 & DSII, "T" D20/PTO, 2" SL, 1" BL, 4 discs, 33"X15", tool boxes, etc. Seeking: Hydraulic gear motor for Koenig pto.

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