Quote:
Originally Posted by twinturrbo406
... here are our Tiger heads with the insert ... it has turned out really nice and the surface is seamless ... it is a bit tricky blending the inserts by hand, as you are literally hovering over the alloy seats with a carbide-burr ((  )) but it is a slow process ... and based on the results of the others engines we've seen using this mod, i see no reason why it wont work as intended for these heads ... and it also makes for a very nice "repair" for any heads that have had any issues in this area, regardless of make ...  |
Looking good ....Question....any thoughts on adding the additional water hole/passage above center bolt...AKA: 421 mod..?? Is it possible with insert..Would it help prolong gasket life even more ??
Would like to hear Calvin's & Glen's opinion ..Thanks
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ECM member.
2008 Outlaw Pontiac Drag Series Champion
MANDRA
Do it now fool! Life is short.
69 Grand Prix/3163lbs / IAII 535 w/ Tiger heads by Gaydosh....9.35@ 144 so far..  through mufflers. 1.26 60'.
Going back to track with pump gas engine....
My 60 Ventura retired to street/strip duty..
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