how high could I rev up a 383 with a factory 400 flex plate - The 1947 - Present Chevrolet & GMC Truck Message Board Network

GMC70c20 · 01-04-2004, 12:24 AM

How high could I rev u pa 383 with a factory 400 flex plate?

djracer · 01-04-2004, 12:33 AM

what kind of rods are in the motor

GMC70c20 · 01-04-2004, 12:51 AM

Factory 5.7's that was in the 350 before.

djracer · 01-04-2004, 12:59 AM

If its a pre 95 motor I'd not turn it more than 6000 max! If its a 96 or newer the rods are rated up to 7000rpm!

junkyardjohn · 01-04-2004, 02:41 AM

YOU CAN REV THAT SUCKER RIGHT UP TO THE POINT WHERE IT COMES APART, & CAN SAFLY BE REVED TO WITHIN 500 RPMs OF THAT POINT.

JOHN

Hooter · 01-04-2004, 03:04 AM

I have forged rods, forged pistons and a forged crank, with fully rollerized valve train and I am too chicken s.hit to rev it past 6000

*rage'nrat638* · 01-04-2004, 10:19 AM

as high as the hydo lifters will go before she brake's up scotty

when you go to far u will know

01-04-2004, 12:24 AM	#1
GMC70c20 Registered User Join Date: Feb 2003 Location: Iowa Posts: 974	how high could I rev up a 383 with a factory 400 flex plate How high could I rev u pa 383 with a factory 400 flex plate?

01-04-2004, 12:33 AM	#2
djracer Registered User Join Date: Feb 2001 Location: Wetumpka, Al, U.S. Posts: 8,892	what kind of rods are in the motor __________________ Kevin Special Thanks to All who have helped on the TRUCK! My Pass Time Show http://s129.photobucket.com/albums/p...Chapter1-0.mp4 So Far my best Times are: Motor only: 6.44 1/8 @ 104.13 10.39 1/4 @ 125.83 Nitrous Times: 5.785 1/8 @ 118.65 with a 1.336 60ft 9.168 1/4 @ 142.58 with a 250 shot dead out of the hole!

01-04-2004, 12:59 AM	#4
djracer Registered User Join Date: Feb 2001 Location: Wetumpka, Al, U.S. Posts: 8,892	If its a pre 95 motor I'd not turn it more than 6000 max! If its a 96 or newer the rods are rated up to 7000rpm! __________________ Kevin Special Thanks to All who have helped on the TRUCK! My Pass Time Show http://s129.photobucket.com/albums/p...Chapter1-0.mp4 So Far my best Times are: Motor only: 6.44 1/8 @ 104.13 10.39 1/4 @ 125.83 Nitrous Times: 5.785 1/8 @ 118.65 with a 1.336 60ft 9.168 1/4 @ 142.58 with a 250 shot dead out of the hole!

01-04-2004, 02:41 AM	#5
junkyardjohn Registered User Join Date: Aug 2001 Location: SOMERSET KY. Posts: 6,425	YOU CAN REV THAT SUCKER RIGHT UP TO THE POINT WHERE IT COMES APART, & CAN SAFLY BE REVED TO WITHIN 500 RPMs OF THAT POINT. JOHN __________________ junkyardjohn 69 1 TON TOW TRUCK // 84 4WD CUCV BLAZER// 85 1 TON 4WD STAKE TRUCK// 86 M1031 5/4 TON 4WD CUCV// ALOT OF OLD TRUCKS FOR ONE OLD MAN TO DRIVE. THERES ROOM FOR ALL OF GODS CREATURES RIGHT NEXT TO MY MASHED POTATOES// LIFE MEMBER OF P.E.T.A (PEOPLE EATING TASTY ANIMALS) DON'T RENT U-HAUL ALWAYS TELL THE TRUTH IT WILL AMAZE PART OF THE PEOPLE & ASTONISH THE REST

01-04-2004, 03:04 AM	#6
Hooter My other Love Join Date: Aug 2001 Location: Castlegar B.C. Canada Posts: 4,085	I have forged rods, forged pistons and a forged crank, with fully rollerized valve train and I am too chicken s.hit to rev it past 6000 __________________ Castlegar B.C.The great white North (Canada Eh!) Hooter_5@hotmail.com First generation Monte Carlo club pictures of my life

01-04-2004, 12:51 AM	#3
GMC70c20 Registered User Join Date: Feb 2003 Location: Iowa Posts: 974	Factory 5.7's that was in the 350 before.

01-04-2004, 10:19 AM	#7
rage'nrat638 Account Suspended Join Date: Mar 2003 Location: THE FALL GUY CHICAGO IL Posts: 5,883	as high as the hydo lifters will go before she brake's up scotty when you go to far u will know



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