440 big block chevy for mudder ? - Pirate4x4.Com : 4x4 and Off-Road Forum

RiverMudder · 11-16-2009, 02:21 PM

I am building an s-10 mud truck truck not a race truck just something to play around the local mudholes in. Truck will not be used on the trails and not driven on the street. I was planning in using a 2000 350 vortec motor with a different cam, intake and a carb on it. My brother in-law drag races and found a good deal on a 440 bbc. Its a 60 over 454 with a 396/402 crank. I did some research and found this was done to reduce some of the torque and make the big block rev better. This motor was in a drag car so i'm pretty sure it's got a big cam cam in it but that can be changed. My s-10 is pretty light,gutted body, frame and dana 60's in front and rear and i haven't decided on the gears yet but i will be running 39.5 boggers for now and step up to 44 bogger or ag tires later on. Will this big block be a better choice than the vortec motor.

Power Giant · 11-16-2009, 02:35 PM

You said that the 350 Vortec has a carb? What's up with that?

TEX · 11-16-2009, 02:56 PM

Yes, that's a better choice for 39.5's IMO. May have to deal with a cam/intake change, but try it out first.

RiverMudder · 11-16-2009, 03:11 PM

The vortec motor is just a stock longblock no intake or electronics with it. So i was just going to buy a vortec intake for a carb since i already have several and have rest of the parts.

cslimfu · 11-16-2009, 03:15 PM

dont forget to machine the heads to go bigger than .430 lift.(on the stock vortec heads) i know the older ones had to have this done. dont know if the newer ones had to or what year the cut off is for this.

11-16-2009, 02:21 PM	#1 (permalink)
RiverMudder Registered User Join Date: Oct 2009 Member # 144185 Location: S.E. Mo. Posts: 34	440 big block chevy for mudder ? I am building an s-10 mud truck truck not a race truck just something to play around the local mudholes in. Truck will not be used on the trails and not driven on the street. I was planning in using a 2000 350 vortec motor with a different cam, intake and a carb on it. My brother in-law drag races and found a good deal on a 440 bbc. Its a 60 over 454 with a 396/402 crank. I did some research and found this was done to reduce some of the torque and make the big block rev better. This motor was in a drag car so i'm pretty sure it's got a big cam cam in it but that can be changed. My s-10 is pretty light,gutted body, frame and dana 60's in front and rear and i haven't decided on the gears yet but i will be running 39.5 boggers for now and step up to 44 bogger or ag tires later on. Will this big block be a better choice than the vortec motor.

11-16-2009, 02:56 PM	#3 (permalink)
TEX Registered User Join Date: Apr 2000 Member # 603 Location: Missouri, USA Posts: 14,194	Yes, that's a better choice for 39.5's IMO. May have to deal with a cam/intake change, but try it out first. __________________ www.probog.com Thanks to: www.heiseroil.com Extreme Performance www.kmelectronics.com Bear Creek Auto Recyclers www.svrehorsepower.com

11-16-2009, 03:11 PM	#4 (permalink)
RiverMudder Registered User Join Date: Oct 2009 Member # 144185 Location: S.E. Mo. Posts: 34	The vortec motor is just a stock longblock no intake or electronics with it. So i was just going to buy a vortec intake for a carb since i already have several and have rest of the parts. Last edited by RiverMudder; 11-16-2009 at 03:14 PM.

11-16-2009, 03:15 PM	#5 (permalink)
cslimfu GREEN BASTARD!!! Join Date: Nov 2008 Member # 123458 Location: amity, oregon Posts: 1,594	dont forget to machine the heads to go bigger than .430 lift.(on the stock vortec heads) i know the older ones had to have this done. dont know if the newer ones had to or what year the cut off is for this. __________________ It's a hell of a thing, killing a man. You take away all he's got, and all he's ever going to have. Last edited by cslimfu; 11-16-2009 at 03:52 PM.

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11-16-2009, 02:35 PM	#2 (permalink)
Power Giant Registered User Join Date: Mar 2008 Member # 110135 Location: North Idaho Posts: 967	You said that the 350 Vortec has a carb? What's up with that?