Posted By: moparAL
Best way to check a block for cracks,options? - 11/05/20 02:56 PM
Best way to check a block for cracks,options? Thanks...
Best way to check a block for cracks,options?
Posted By: John_Kunkel
Re: Best way to check a block for cracks,options? - 11/05/20 04:59 PM
For iron blocks I believe magnaflux is still preferred with dye-penetrant an option for home use.
Posted By: cudaman1969
Re: Best way to check a block for cracks,options? - 11/05/20 08:40 PM
For heads and blocks I use magnaflux with the yellow dust, very easy to see the cracks. For cranks I take to my buddy for the ultraviolet light and dye.
Posted By: Cab_Burge
Re: Best way to check a block for cracks,options? - 11/05/20 11:49 PM
Have it clean it thoroughly before having a good shop mag it so they are sure there are no cracks any where 
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I've had the bad luck of a regular shop mag a set of 906 heads that they said where good only to find out on the engine dyno that one head had a long crack under the center two exhaust ports between the head bolts and the exhaust ports
that shop did a lot of Chevy and fords but not many Mopars
I've seen probably 6 or more 906 heads cracked there in SO CA
\I've had the bad luck of a regular shop mag a set of 906 heads that they said where good only to find out on the engine dyno that one head had a long crack under the center two exhaust ports between the head bolts and the exhaust ports
that shop did a lot of Chevy and fords but not many Mopars
I've seen probably 6 or more 906 heads cracked there in SO CA