Re: welding a block

Posted by The tractor vet on March 31, 2014 at 08:26:05 from (75.19.115.57):

In Reply to: welding a block posted by Brian806 on March 31, 2014 at 07:17:05:

If the point of EXIT was not in a water jacket or oil passage area i would weld it and never think twice about it . But then this depends on how good of a welder you are . Many years back and i do mean many years back i had a clutch come apart on a 390 Ford and this was suppose to be a BLOW PROOF clutch . Back then we did not have a scatter proof bellhousing like we have today . I did have however the NASCAR approved one . When that Schrieffer dual disc came apart it came thru that bell housing cut the steering shaft in half took the master cylinder off the fire wall put big dents in the hood and floor pan of the car made big holes in the road and lots of pieces and parts scattered down the road . It also broke the ears off the block and a few other pieces off the back of the block . I had a ton of money in this engine and lots of machine work done to it . I welded pieces of steel bar stock to that block to replace the lower mounting ears and built up with weld where the other bolt holes were broke out. Re drilled and tapped them and put it back together and changed brands of clutch . A buddy use to pull Modifieds and ran a 487 Donavan alum. block you do not want to know how many patches that i welded in that block . Even when he crashed it on a Friday evening pull and we found that he had a split crack what ever ya want to call it running up thru the center main web up to the cam bore i welded it up solid re drilled the oil hole and we lined bored the cam bore and the crank bore and it was back running for the pull Saturday evening . The big problem you will run into is contamination and porosity . Getting all the oil and dirt out is the main thing . Ya see a pin hole grind it out and try again heat - weld peen grind and repete . As for what rod that is up to you . When done you can repaint the inside of the block with Gilftic (sp) paint , you will not like the price of it but good things cost MONEY. This will seal any pin holes you may have missed .

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