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edhd58 · 09-03-2017, 07:04 AM

[QUOTE=40 Deluxe;1522010][QUOTE=edhd58;1521862]My G series 226 has now developed a knock.

What i am wondering is, is it possible to stretch a rod bolt?
I am being told thats what it sounds like.
[/QUOTE

Who told you it's a stretched rod bolt? Was it someone with real life experience, or an 'armchair expert'?

It was a fellow that supposedly has built many high performance - 600+hp engines for drag racing, for both others and himself. I say supposedly because I was not present when he did them, And this motor has more stroke than is race car does, its over 800 hp naturally aspirated no nitro
my motor has 4-1/4" stroke.

We were discussing stretched rod bolts because the engine has been apart who knows how many times, a few just with me, and always used the same rod bolts. I know one of the pressure plate bolts broke torquing it down this last time, and actually i was just snugging it getting ready to torque them all.

MOON, on this car it's a pull the motor event.

09-03-2017, 07:04 AM	#12
edhd58 Senior Member Join Date: Jul 2014 Location: Guston,ky Posts: 653	Re: Flat 6 just developed a good knock [QUOTE=40 Deluxe;1522010][QUOTE=edhd58;1521862]My G series 226 has now developed a knock. What i am wondering is, is it possible to stretch a rod bolt? I am being told thats what it sounds like. [/QUOTE Who told you it's a stretched rod bolt? Was it someone with real life experience, or an 'armchair expert'? It was a fellow that supposedly has built many high performance - 600+hp engines for drag racing, for both others and himself. I say supposedly because I was not present when he did them, And this motor has more stroke than is race car does, its over 800 hp naturally aspirated no nitro my motor has 4-1/4" stroke. We were discussing stretched rod bolts because the engine has been apart who knows how many times, a few just with me, and always used the same rod bolts. I know one of the pressure plate bolts broke torquing it down this last time, and actually i was just snugging it getting ready to torque them all. MOON, on this car it's a pull the motor event.