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  1. R

    Vortec 906 & 062 valve stem o.d. ?

    Thanks so much for your help. Definitely will do the machine shop. Im leaning heavily towards the gmperformance cast iron bowtie Vortec heads, I have a GM employee # and the heads would be discounted quite a bit. what do you think of those?
  2. R

    Vortec 906 & 062 valve stem o.d. ?

    Wow! I feel more ignorant every time I post something. When I look up that part# on that crank it comes up anywhere between 1,300 & 1,700 dollars. I will definitely take your advice on the heads , I actually wanted iron heads before but was told there where better heads for the same money going...
  3. R

    Vortec 906 & 062 valve stem o.d. ?

  4. R

    Vortec 906 & 062 valve stem o.d. ?

    sorry i couldnt finish my response. Is there a reason why I shouldnt use my crankshaft? It only has about 20 hours of use on it. I used a micrometer on it and it iis in spec. Never cut? the area I am in doesnt really support much auto racing & I dont really believe there is an over abundance of...
  5. R

    Vortec 906 & 062 valve stem o.d. ?

    Thank you. Wow I’m really disappointed that I shouldn’t use the forged crank I already have. It was a $1342.00 crankshaft from Mercruiser.
  6. R

    Vortec 906 & 062 valve stem o.d. ?

    Thank you for responding. Upon further inspection (with my glasses on) The 062's are .341. The 906's are close to.357, but the heads came off of a genuine mecruiser reman i purchased somewhere around 2009. I am a Diesel marine mechanic and use my boat for transportation from shipyard to...
  7. R

    Vortec 906 & 062 valve stem o.d. ?

  8. R

    Vortec 906 & 062 valve stem o.d. ?

    Hello everybody, I am disassembling 2 sets of Vortec heads for inspection for my stroker build. One set of 906's & a pair of 062's. I am a little puzzled at the fact that the 906's have a valve stem o.d. of .332 & the 062's are .319. I thought the heads were supposed to be the same except for...
  9. R

    What´s the best replacement for AQ271C (or 570) 5.7 GM engine, ideally stroker?

    Hi Scott, new member today. What a blessing to see this post you have going on about the stroker/Vortec info. By the way, the 24 Rouges are pissah boats, especially 496. Ive been a diesel marine mechanic for years & done my share of engine work. Im building my !st. gas engine & i have a...
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