The 1947 - Present Chevrolet & GMC Truck Message Board Network

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- Racing and high performance (trucks haulin more than hay) (https://67-72chevytrucks.com/vboard/forumdisplay.php?f=60)

- - Rpm? (https://67-72chevytrucks.com/vboard/showthread.php?t=324622)

10secopcar

01-19-2009 06:59 PM

Rpm?

This is probably a stupid question but I am new to the game and wanna know. What kinda rpms can u twist a stock 402 to without doing damage. I have heard they don't wrap as tight as small blocks but just needing to know how high it will twist.

larry may

01-21-2009 06:11 PM

Re: Rpm?

Twist . TWISTED RPM s? Betting it will twist everyone of them. who really knows before damage takes place. There are no crystal Globes.

10secopcar

01-22-2009 06:21 PM

Re: Rpm?

yea i kinda figured there were no crystal balls out there or know one would ask questions and we'd all own one. i was just looking for how far people have taken them without blowing them up.

kwhite4

01-22-2009 07:35 PM

Re: Rpm?

I had a 72 with one some years back and I pushed it to 5000 on a regular basis without issue but then again if its got a few miles on it then who knows...

ProStreet68SB

01-22-2009 07:41 PM

Re: Rpm?

i wouldnt go past 5k with a stock 402

10secopcar

01-24-2009 06:30 PM

Re: Rpm?

thanks for the help guys I appreciate it.

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