9z S10 blazer 4x4 4.3 cam swap better MPG

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9z S10 blazer 4x4 4.3 cam swap better MPG

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Blazer Forums >> Modifications >> Performance & Brainstorming >> Engine & Internal >> 9z S10 blazer 4x4 4.3 cam swap better MPG

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9z S10 blazer 4x4 4.3 cam swap better MPG - 4/8/2008 9:26:17 AM

Dakota_Don

Posts: 6
Joined: 4/7/2008
Status: offline

Hi all I am ordering a rebuilt short block 4.3 letter W from www.cmengines.com for 540, i will have the heads rebuilt, and i was going to install the original cam, but is there a better cam I can use for better Gas MPG, if so who would make one? will I need to make any computer mods? would headers help also? the Muffler looks to be 75lbs LoL its just friggin huge, so i will be yanking it off for a smaller lighter one..

thanks for any info

Don

Post #: 1

RE: 9z S10 blazer 4x4 4.3 cam swap better MPG - 4/8/2008 10:00:52 AM

swartlkk

Posts: 13572
Joined: 5/1/2005
From: Waterloo, NY
Status: offline

I would contact Comp Cams or another cam manufacturer of your choice for recommendations for your vehicle. They will know the application and can best recommend a cam for your needs.

_____________________________

Kyle-

2004 Rainier
1970 Chevelle - Resto
1974 K5 Blazer - Resto

(in reply to Dakota_Don)

Post #: 2

RE: 9z S10 blazer 4x4 4.3 cam swap better MPG - 7/16/2008 7:06:57 PM

hoodsblazer

Posts: 7
Joined: 7/16/2008
Status: offline

I installed a Comp Cams 260 AHR camshaft kit in mine. I did the full kit. Better MPG and power. Worked out well with stock injection and PCM. I have the non-balance shaft 4.3 (262 C.I.D.) engine. Contact Sam Culp at comp cams, he''s a BIG help.

_____________________________

Justin

(in reply to swartlkk)

Post #: 3

RE: 9z S10 blazer 4x4 4.3 cam swap better MPG - 7/21/2008 6:22:00 PM

BSchmity69

Posts: 50
Joined: 9/25/2007
Status: offline

how long did it take to do, how much$$$$ and how much did ure mpg change?

(in reply to hoodsblazer)

Post #: 4

RE: 9z S10 blazer 4x4 4.3 cam swap better MPG - 7/21/2008 7:14:48 PM

hoodsblazer

Posts: 7
Joined: 7/16/2008
Status: offline

I purchased the K-kit from comp cams. I think it was around $700 for the kit. I also did it as a part of an engine, transmission, T-case, front and rear diff overhaul. I am seeing about 21 hwy MPG and it has a LOT more power. I did nothing to the exhaust, it''s all stock. I was only getting around 17 hwy MPG before the work. I did all the work myself, I am an ASE certified tech. The labor was only blood, sweat, and tears!

(in reply to BSchmity69)

Post #: 5