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iTrader: (30)

Anyone know what size holes I need to drill for injector bosses? Is it a straight thru hole, or does it have features (counter bored, grooved)? I got this neat little GM intake with cast injector bosses that are not drilled out ... yet. I searched here and everywhere, but I can't find an answer. Thanks!

MrDude_1

iTrader: (4)

does this help? http://66.83.134.202/travis/L107.pdf


i just stumbled across it as i was researching some larger injectors for....uhhh... some "small" mods..

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iTrader: (30)

That really helps! Any one else have more inputs?

ChucksZ06

iTrader: (9)

I believe it is 14 mm. I modded a victor jr for my 406 sbc and purschased a bit to bore my own holes. If I had it to do over I would have bored holes undersize and sanded out to correct size. O rings will seal better I believe.

12secSS

iTrader: (30)

Thanks Chuck! I looked at my injectors and they are O-ring and just fit on the OE style manifold. So I am going to have my machinist take a look at it and he should have it done rather quickly.