Cpt.Fred Posted February 10, 2011 Report Posted February 10, 2011 hello everybody, we have some missing stud bolts on the block we're using to weld up the new headers and intake, so we need to find or fabricate new ones. can anyone tell me the correct thread type, UNC or UNF, and the size? that would be great! i wanted to order a hardware kit from andy b., but we cannot wait for that now... thanks a lot in advance! best from berlin, fred Quote
moose Posted February 10, 2011 Report Posted February 10, 2011 The holes in the block are 3/8" coarse, and the part that comes out uses fine thread nuts to hold everything down. I like to use all studs for my headers, and make sure you put some kind of high temp thread sealant on the threads going into the block. Quote
Don Coatney Posted February 10, 2011 Report Posted February 10, 2011 Moose posted the size and pitch. You can find these studs at McMaster Carr online. Quote
Cpt.Fred Posted February 10, 2011 Author Report Posted February 10, 2011 thank you very much! 3/8" -16 UNC, now i can try ordering them from a german shop. the problem was that the thread gauge was under suspicion of being for british whitworth threads... it's always a pain with this imperial/metric, british/US stuff, the whitworth is more common around here and has a different inclination on the thread flanks (i hope you can understand what i mean, i tried to translate the german words but don't know if they're correct) anyway, thanks a lot! Quote
Gary Manes Posted February 10, 2011 Report Posted February 10, 2011 All the screws, and bolts for these cars are thoroughy described in the shop manual. Just look up the section covering the parts you are working on, and there will be a list of the number of screws/bolts and all the information concerning them; including size--dimensions, even the metal used. Thank God for that or I would have had a nightmare trying to find out the info without a sample to start with. I was browsing a 1954 Desoto (the car was in the garage I use) shop manual the other day. Could not find any references to fasteners in it. They may be in a separation section but that would be unusual. I hope they're in it somewhere because I am about to buy a 1954 Chrysler Windsor with a flat head. Quote
TodFitch Posted February 10, 2011 Report Posted February 10, 2011 All the screws, and bolts for these cars are thoroughly described in the shop manual. ...snip.... Depends on the shop manual. The older the vehicle the less information it is likely to have. At least that is the trend I've noticed between 1934 (the first year for a Plymouth factory service manual) and the early 1990s (the newest car for which I bothered to get a manual). In the early 1930s, the manual does not list torque specifications nor fastener details. Apparently either the values weren't deemed critical or they thought any mechanic would just know. Quote
Jim Yergin Posted February 10, 2011 Report Posted February 10, 2011 I have had better luck finding that information in the parts manual for my '41 P12. Jim Yergin Quote
michael.warshaw Posted February 10, 2011 Report Posted February 10, 2011 i know that vpw has the whole kit yu could have it in a day with fedex overnight. Quote
Cpt.Fred Posted February 10, 2011 Author Report Posted February 10, 2011 i don't have a parts manual yet, but i do have shop manual... so thanks for the tip! i must admit i didn't find that before. but in this case it wouldn't have helped me anyway because i keep the manual at the garage and now i am sitting at home and work... so now i could order them at a local parts store and they can be picked up immediately without shipping cost and delay. but still... Quote
greg g Posted February 10, 2011 Report Posted February 10, 2011 Fred, please post some pics of you manifolds and your work process. Thanks Quote
Cpt.Fred Posted February 10, 2011 Author Report Posted February 10, 2011 sure will, greg! as soon as i have those studs... and the flanges. the laser cutter got them ready yesterday, but neither me or my friend could fetch them yet because there's a lot of work right now... which is great, because it ables me to blow money for manifolds and carbs and studs and fuel blocks and pressure gauges and... i'll post them next week in the "201 hop up" thread. have a nice day over there, i call it one now and get away from that screen... best from berlin, fred Quote
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