cast iron weld, 1970 383 Road Runner head

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grind out crack, preheat to 700, OA spray weld, postheat, blast in airless shot blaster (stainless media) to cool and stress relieve, machine weld, pressure test Attached Images
Reply:Love those old Mopars!Out  of curiosity, Are those heads getting hard to find or is he trying to stay with a numbers matching car? I used to be able to get the 383's easily. The 440's were harder to find but not too bad. I could see all that work for a 340 or a hemi.
Reply:Originally Posted by DSWLove those old Mopars!Out  of curiosity, Are those heads getting hard to find or is he trying to stay with a numbers matching car? I used to be able to get the 383's easily. The 440's were harder to find but not too bad. I could see all that work for a 340 or a hemi.
Reply:If it's a show car, it probably means its all original.Damn that's a good price. I forget what I paid years ago to get the heads rebuilt for my 318 when I redid the motor but I bet I paid at least that much 15 years ago! I think we paid about $50 for a running motor at that time for the small blocks, $100 for a running 440. I wanted to keep my high compression heads so that's why I paid the extra to get them rebuilt rather than just get a good used set. Of course I did get all new guides valves etc at that time.My guess would have been $650+ easily. I would have figured at least $200 min  just to weld it. Figure 2 hrs work as a min time charge at $75/hr. Then at least $50+ for consumables, gas, fuel, rod, grinding disks etc. Then all the machining and rebuild. As you can see its been a while since I did much with these.
Reply:I'm guessing the fuel for preheat came out of overhead as there is no charge for it.How did you preheat it?A butterfly without wings, is just an ugly bug
Reply:The picture of the head with the what looks like JBweld or what ever on it doesn't look like show car material from here!    But you did an excellent job on the head!! Nice weld.Miller Thunderbolt 225Millermatic 130 XPLincoln HD 100 Forney C-5bt Arc welderPlasma Cutter Gianteach Cut40ACent Machinery Bandsaw Cent Machinery 16Speed Drill PressChicago Electric 130amp tig/90 ArcHobart 190 Mig spoolgun ready
Reply:Originally Posted by Magnetic MechanicI'm guessing the fuel for preheat came out of overhead as there is no charge for it.How did you preheat it?
Reply:looks like you no what your doinggreat work
Reply:BeautifulI sure like the old big blocks"Any day above ground is a good day"http://www.farmersamm.com/
Reply:newbie quesion, but why the preheat? I'm guessing it's because of the cast iron...
Reply:Originally Posted by Magnetic MechanicI'm guessing the fuel for preheat came out of overhead as there is no charge for it.How did you preheat it?
Reply:Originally Posted by STwelderThe picture of the head with the what looks like JBweld or what ever on it doesn't look like show car material from here!    But you did an excellent job on the head!! Nice weld.
Reply:Originally Posted by ggenoveznewbie quesion, but why the preheat? I'm guessing it's because of the cast iron...
Reply:Originally Posted by ed maclooks like you no what your doinggreat work
Reply:Originally Posted by farmersammBeautifulI sure like the old big blocks