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M97 3.6 Porsche Explosion Repair
Doesn’t get much worse than this.
M97 Failures Sparkplug Removal warning
When these engines go kablooey and you know it’s going to have to come down, do yourself a favor and resist the urge to pull
How to box heads for shipping
How to easily package heads for safe transport. Please read before shipping.
A Tale Of Three Heads:The 3.4l Porsche Lineage M96,M97,9A1
I originally published this article in 2012. Though I’ve made major advancements in certain areas with all three of these heads, the basic info here
We No Longer Work With Used Type4 Cylinderheads
Why we no longer work with used Type 4 Cylinderheads.
The Hot Head Pressure Testing Myth
A brief debunking of a common misconception about water cooled cylinder head cracks.
Hoffman Automotive Machine (706)769-3783 
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