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By MarkMontereyBay - 14 Years Ago
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I took my 312 all the way down to measure and inspect prior to starting the build. After some remedial reading on engine repair I found the cylinders to be standard 3.80 bore. Crank is 20 under rod journals and 30 under mains. The bearings all look good. Plasticgauge has them all within normal spec. Decided to re-ring just because and when starting to de-glaze the cylinders I discovered the lips at the bottom of the bores holding sleeves in all 8 cylinders. The engine has less that 20k as far as I can determine and the inside of the motor is clean. The water jackets are clean and clear of any rust. I checked the main webs and can't see any cracks. It has been a smooth good runner for the 6 or so years I have had the car.
The sleeves have me worried. The cost of using my crank, etc. in an acceptable and machined 292 block is pretty costly. I will be using Mummerts 270 Cam/Lifters, Sanderson Headers, Mummert aluminum heads(not ported), MSD/Petronix ignition, and a Edelbrock 573 with 3 94's (rethinking that now due to restricted amount of Carb CFM). If I use a Mummert intake and 4bbl carb (650CFM or so) I think the HP should be about 300 or so. Am I pushing my luck with a sleeved block? This is going to be a street non-race ride just for enjoyment; on-ramp blasts and harassing the guy down the street who just butchered his 57 Vette with a late model stock 350 scrub motor. I am coming up on some medical therapy that will slow the project down for the next 6 months. Any input would be great. Thanks.
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By Oldmics - 14 Years Ago
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Well,I still say NO !!! But read what the experts believe. http://www.y-blocksforever.com/forums/Topic57610-3-1.aspx Oldmics
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By MoonShadow - 14 Years Ago
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The engine ran fine with the sleeves before. ReRing it and go for it there is no reason it shouldn't continue to work. Big truck engines are commonly sleeved and run lots of hard miles! Chuck's 2 cents
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By MarkMontereyBay - 14 Years Ago
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Yeah...I have read through the archives here and on the FE Forum about sleeves. My concern is an unstable or weakened deck and aluminum heads possibly making head gasket leaks a problem. I am using ARP hardware for the heads.
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By Oldmics - 14 Years Ago
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or http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=280689090525&viewitem=&sspagename=STRK%3AMEWAX%3AIT I"m watchin this and considered bidding BUT it sounds like you may need it more than I do right now? Oldmics
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By MarkMontereyBay - 14 Years Ago
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Not a big fan of Ebay for items like this. No photos of the cylinder walls, deck surface, water jackets, etc. Also the in-your-face tone of the add sets me back. It is a long way from the West Coast and I don't need an expensive boat anchor if it turns out badly. I will watch it though just out of curiosity. Given what the inside of the block looks like, those 62K miles were more like 162K.
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By Ketterbros - 14 Years Ago
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It is my understanding that all aluminum block engine being produced today are sleeved.. except the new Ford 5.0 which is sprayed cylinders..?? Correct me please..??
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By Ted - 14 Years Ago
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As long as the sleeve is properly installed, there should not be an issue with the head gaskets. One exception to this is if the sleeve was an overly thick one that required excess removal of the original cylinder wall into the water jackets, then the potential for coolant leakage into the combustion chamber where the head gasket sealing ring leaves the edge of the sleeve becomes more pronounced.
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By Glen Henderson - 14 Years Ago
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I have found that sleeving all eight cyl's was common practice for Fred Jones (authorized rebuilder for ford), I have found three 292's that had eight sleeves over the years and all of them had a Fred Jones rebuild tag on them. They used Ford factory pistons, so I assume that they must have had a stock of standard pistons, so sleeving all eight was a way of using them. By the way all of these blocks still looked good and could have been reringed and used again.
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By MarkMontereyBay - 14 Years Ago
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Thanks for the good info. The oil pan has a tag from Valley Engine Rebuilding in Salinas, Ca. I remember them being a long-time business but apparently no longer happening. Phone disconnected. The build sheet is from 1996 but states a 40 over bore. The build sheet doesn't have any logo or letter head identifying where it came from. The cylinders all measured within spec with a dial indicator bore gauge. The Conformatic pistons are stamped STD and new looking but no Ford numbers or logo. All the sleeves look uniform in thickness. Looked at the water jackets as best as possible through the freeze plugs, etc. and wasn't able to see any cracks or exposed areas. Unless I find a solid reason to change to a 292/312 crank combo, it will go back together with a new set of rings.
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By aussiebill - 14 Years Ago
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MarkMontereyBay (6/4/2011)
Thanks for the good info. The oil pan has a tag from Valley Engine Rebuilding in Salinas, Ca. I remember them being a long-time business but apparently no longer happening. Phone disconnected. The build sheet is from 1996 but states a 40 over bore. The build sheet doesn't have any logo or letter head identifying where it came from. The cylinders all measured within spec with a dial indicator bore gauge. The Conformatic pistons are stamped STD and new looking but no Ford numbers or logo. All the sleeves look uniform in thickness. Looked at the water jackets as best as possible through the freeze plugs, etc. and wasn't able to see any cracks or exposed areas. Unless I find a solid reason to change to a 292/312 crank combo, it will go back together with a new set of rings.]Good decision!
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