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73-87 Chevy _ GMC Trucks => Performance => Topic started by: 79c10junkie on April 03, 2004, 11:37:00 am

Title: Estimated guess on horsepower and torque?
Post by: 79c10junkie on April 03, 2004, 11:37:00 am

My .350 was rated stock out of the factory at 200hp low and 300hp high end.I have rebuilt it and added a 4bb aluminum highrise intake,4bb edelbrock 1407 series carb,comp cams,268-high energy w/ .454 lift.AND soon to get exhaust run from the manifolds into 2 flowmaster 40 series out under the back bumper.The heads are 2.02 intake,1.60 exhaust,and I'm not sure ,but I THINK think the combustion chambers are 76cc.Any of you engine wizards out there have a good estimate on what this engine can produce.The bottom of the engine is stock.


The block number is 3970014 just incase some one wants to double check the stock ratings. Thanx in advance.
                                                                 David

Edited by: 79c10junkie at: 4/13/04 1:19 pm

Title: Re: Estimated guess on horsepower and torque?
Post by: TORQUERULES on April 06, 2004, 09:33:00 pm

319 lb ft @ 3000rpm, 300 lbft plus from 2500-4000rpm

238 hp @ 4500rpm

had a 305
have a 357
want a Big Block

Title: 350
Post by: cimfth on April 13, 2004, 10:19:00 am

I have the same block that you have in my 78K20. Iam not sure but I think I have the 200 horse version.  I asked the same question and someone said like 240 hp.  Is yours a 2 or 4 bolt main? Mine is a 2 bolt.  My engine is bored .60 over and has a rebuilt quadrajet, flowtech headers, 2 1/4 inch duals, 1970 corvette intake, and the heads are 1.94 intake 1.50 exhaust with 76cc chambers.  What is an LA built camaro? Is this engine different because it was from an LA built camaro.

Title: Re: 350
Post by: 79c10junkie on April 13, 2004, 01:17:00 pm

Mine is also a 2 bolt main.The heads are 2.02in and 1.60ex. I'm not sure of the cc's.Motor has been over-hauled. New crank,main bearings, rod bearings,comp cam 268 high energy and lifter kit,valve springs and timing kit. Holley strip dominater intake, w/750cfm edelbrock performer carb.I'm not sure what an l.a. built camaro is either.That's what showed up when I ran my numbers.(3970014)

                        79c10junkie

Title: Re: 350
Post by: roundedline on April 13, 2004, 01:47:00 pm

I am guessing you are asking this because you looked this up on nastyz28.com's Camaro website.  An LA built Camaro was a Camaro that was built in Los Angelos instead of Norwood.  There were 2 plants that built Camaros from 70-81: LA and Norwood.  LA didn't build any from  1972 thru 1975.  All that were built then were built in Norwood.  

That block number was used from 68-79 in everything from Chevelle, Passenger cars, Camaro, Nova, Monte Carlo, Trucks and Corvettes (late 1972 only -was 4 bolt)  There is nothing special about the block and if it is in your truck, it didn't come from an LA built Camaro.

Chris Lucas
www.73-87chevytrucks.com
www.captkaoscustoms.com
Project Su
Jimmy 2WD Project

Title: Sorry.
Post by: 79c10junkie on April 13, 2004, 03:20:00 pm

I DELETED THIS POST.

           
                           



     

Edited by: 79c10junkie at: 4/14/04 10:12 am

Title: Re: 350
Post by: roundedline on April 13, 2004, 04:03:00 pm

It appears that you read what I posted incorrectly....again (like when I edited your post..pub158.ezboard.com/f7387c...D=83.topic  )  

He wanted to know what an LA built Camaro was, and I posted that answer, and then he wanted to know what was special about it and I answered that.  I also stated that is isn't special to a truck owner.  

It would be to a Camaro owner that was rebuilding a numbers matching Camaro and the VIN was stamped on the Block though.  Overall, a 350 block is just a 350 block.

The only way you or I would know what a motor came out of what is if A) you or I owned it originally from the factory, B) We owned the donor car and new its history or C) the Assembly number was stamped on the motor and was still visible and could be decoded to a know vehicle.

Chris Lucas
www.73-87chevytrucks.com
www.captkaoscustoms.com
Project Su
Jimmy 2WD Project