Saved a couple heads..

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Customer wanted to save heads, Larry closed shop so getting another set ported by him wont happen. Says these worked better than others he ran. Preheat 350 degrees, weld with a356 wire, post heat 350 cool slowly. Then spend lots of time fabricating seats, machine work, pressure testing, grinding to shape.Equipment:2  old paws2  eyes (that don't look so good)1  bad back
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Pics of jobEquipment:2  old paws2  eyes (that don't look so good)1  bad back
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Equipment:2  old paws2  eyes (that don't look so good)1  bad back
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Equipment:2  old paws2  eyes (that don't look so good)1  bad back
Reply:cast...   that there is artistry... bravojohn
Reply:Nice work... what came unglued to mangle 6 cylinders at once??The harder you fall, the higher you bounce...250 amp Miller DialArc AC/DC StickF-225 amp Forney AC Stick230 amp Sears AC StickLincoln 180C MIGVictor Medalist 350 O/ACut 50 PlasmaLes
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Originally Posted by jniolon

cast...   that there is artistry... bravojohn
Reply:ThanksPeterEquipment:2  old paws2  eyes (that don't look so good)1  bad back
Reply:Dropped a valve, shoved it into valve seats which broke into small pieces and were pumped into other cylinders. Valve and piston dont do well in same place at same time.PeterEquipment:2  old paws2  eyes (that don't look so good)1  bad back
Reply:I've broke a couple valves.... usually they went straight up through the head and destroyed it on the way to the valve train, or up into the head via the side of the cylinder wall which destroyed both the cylinder and the head. I've never seen the shrapnel get into more than 2 cylinders before.  This guy is very lucky he had something left to work with, and knew somebody that could fix it right...The harder you fall, the higher you bounce...250 amp Miller DialArc AC/DC StickF-225 amp Forney AC Stick230 amp Sears AC StickLincoln 180C MIGVictor Medalist 350 O/ACut 50 PlasmaLes
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Originally Posted by whtbaron

I've broke a couple valves.... usually they went straight up through the head and destroyed it on the way to the valve train, or up into the head via the side of the cylinder wall which destroyed both the cylinder and the head. I've never seen the shrapnel get into more than 2 cylinders before.  This guy is very lucky he had something left to work with, and knew somebody that could fix it right...
Reply:Mine were both IHC gas 6 cylinders, and both broke #1 exhaust after a valve grind. They did manage to stay pointy side up though...The harder you fall, the higher you bounce...250 amp Miller DialArc AC/DC StickF-225 amp Forney AC Stick230 amp Sears AC StickLincoln 180C MIGVictor Medalist 350 O/ACut 50 PlasmaLes
Reply:Thanks guys.This is typical crash results, but valve/parts can end up everywhere! Blocks do not escape damage along with a bent connecting rod. I have photos of a nitrous mishap that broke one end of the head off, it took a few hours but that one is back in one piece and back on drag engine. PeterEquipment:2  old paws2  eyes (that don't look so good)1  bad back
Reply:Nice workwww.tjsperformance.comDynasty 300 DXHTP 240HTP Microcut 380Hyperthem 85JD2 Hyd Bender and HF Hyd Ring Roller all in one =(Frankenbender)Bpt. Mill/DRO4' x 8' CNC Plasma TableInstagram: tjsperformanceYT: TJS Welding and Fabrication
Reply:As always Peter - simply amazing.  Nice to see you still posting your magic.MM200 w/Spoolmatic 1Syncrowave 180SDBobcat 225G Plus - LP/NGMUTT Suitcase WirefeederWC-1S/Spoolmatic 1HF-251D-1PakMaster 100XL '68 Red Face Code #6633 projectStar Jet 21-110

Save Second Base!
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Originally Posted by 52 Ford

I've seen a few videos and pictures recently of newer motors (motors in newer production cars, I mean) that dropped valves and they ended up stuck through the piston. Usually valve stem first. Like maybe the valve stem broke part way up, valve came down, flipped then got shoved through the piston. I tried to find a picture, but Googling "valve in piston" just shows pistons from interference motors. Sent from my Lincoln Buzzbox using Tapatalk
Reply:That there is the work of a craftsman, awesome repair.Do I dare ask how many hours?.......
Reply:Bill was a little over $1000, around 11 hrs.. Fab 2 seats, machine seats to correct depth, finish a simi finished valve guide, oven weld 2 heads, cut 3 angles on seats, 2 pressure test heads, 2 surface heads, grind reshape chambers, 3 helicoils.Equipment:2  old paws2  eyes (that don't look so good)1  bad back
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Originally Posted by whtbaron

Edelbrocks will be aluminum, but yes, it is artistry...
Reply:That is a lot of work for only 11 hours and damn fine work at that
Reply:Thanks for the praise. I turned 63 this year and will be working as long as i can. Would like to take more time off and travel though. Looks like stuff like this is on the decline. PeterEquipment:2  old paws2  eyes (that don't look so good)1  bad back
Reply:Very nicely done

Dave J.Beware of false knowledge; it is more dangerous than ignorance. ~George Bernard Shaw~ Syncro 350Invertec v250-sThermal Arc 161 and 300MM210DialarcTried being normal once, didn't take....I think it was a Tuesday.
Reply:Thanks.Customer picked up today, he liked job and didnt complain about price. Overall a good deal.Equipment:2  old paws2  eyes (that don't look so good)1  bad back
Reply:Larry closed shop so getting another set ported by him wont happen.
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Originally Posted by castweld

Looks like stuff like this is on the decline.There is no reason to be intimidated by electronics or computers. Bonus is most of them don't barf coolant or lubricants when taken apart. Real gearheads (born, not made) love ALL technology and consider each new challenge an opportunity to learn useful skills. 3D printing is driving interest in CAD so it's common for techies to design then make all sorts of useful electronic devices. Homebrewed EFI is very old news. What one many can make another can make. There are many techies intimidated by welding and wrenching. Best to enjoy them all because all it takes is determination.
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Originally Posted by jniolon

cast...   that there is artistry... bravojohn