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Old 11-24-2015, 09:52 PM   #1
Mrturner1
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New to the forum

hey everyone I'm Matt. cruised this forum for answers so much I decided to join up. I got myself a coming home from an Iraq deployment present in the form of a 1970 C10 long bed. straight body with fresh grey primer, 350 with edelbrock carb and intake, MSD distributer, long tubes with 2 1/4 inch pipe to flow masters, and some kind of lumpy cam I'm not sure what, but the truck has stock heads unfortunately, would like to figure out what cam its got. also has a h400 with shift kit. any who, its a blast to drive, would like more power though and i have a set of Pro Topline heads but wondering if they are gonna make power, or if i should go with something else. i think they are 64cc chambers and 180's if I'm not mistaken. would love some advice. also wondering if I could go 3 inch on the exhaust, 2 1/4 seems so small for that motor
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Old 11-24-2015, 10:49 PM   #2
flashed
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Re: New to the forum

Welcome ,Im in for pics .
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Old 11-25-2015, 07:28 AM   #3
EARNHARDT#3
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Re: New to the forum

According to Mr Stacy David your exhaust is plenty big.

https://m.youtube.com/watch?v=jSEGQulQkz0
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Old 11-25-2015, 09:36 AM   #4
68350
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Re: New to the forum

Thank you for service and welcome to the board! I'm sure someone with motor knowledge can answer your question. 2.25" exhaust is a good size for a fairly stock 350.
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68 Chevy CST/10, 50th Anniversary, 327/th400, 373 posi, buckets
68 GMC Shortbox Stepside, 402/th400, Tilt, Tach, Bucket Seats, 3.08 Positraction
69 Chevy Camaro SS, 383, 4 speed, positraction
70 Chevy El Camino SS396, Triple Black, 454/th400, Tach
70 Chevy Shortbox Stepside 4x4, 350/th350, Tilt, Tach, Cab Lights, Bumper Guards, Tow Hooks
70 Chevy 3/4 Longbox, 350/auto, 70k, SURVIVOR
71 Chevy Blazer, CST, 350/auto
71 GMC Sierra K2500, 454, 4 speed, 4.10 posi, 37s
71 Custom/30, Open Road, 350/th400, tilt
72 Chevy Shortbox Fleetside, 496 Stroker/th400, Tilt, Tach, Bucket Seats, 3.42 Posi
72 GMC Sierra Grande 2500. 427/th400, tilt, a/c, tool and stowage, buckets/console, 3.54 posi
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Old 11-25-2015, 09:38 AM   #5
RenoKeene
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Re: New to the forum

Welcome aboard from Florida and thanks for your service to our country.
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70 GMC Short Stepside "Rose"-An American Beauty: Factory 402/TH400, AM/FM, AC, Tilt, Tach, Buckets, Posi, PS, PB, 3-5 Drop, Complete Resto-Rod
67 C-20 Slant Back Wrecker "Mad Max"
67 C-10 Ratrod "Step-N-Wolf"
71 Serro Scotty Sportsman camper "Scotty"
97 LT1 Z28 "The Hornet"

Link to more pics of "Rose" http://67-72chevytrucks.com/vboard/a...p?albumid=1684

Check out my "Cheap Tricks" thread and add to it if you can, lots of good info there. http://67-72chevytrucks.com/vboard/s...d.php?t=489394
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Old 11-25-2015, 10:57 AM   #6
collin70k/20
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Re: New to the forum

Thanks for your service and glad to have you aboard!
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Old 11-25-2015, 12:11 PM   #7
57taskforce
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Re: New to the forum

Thank you sir for your service! I've got two brothers In law who have or are getting ready to do tours with the Marine Corps. I've got a lot of respect to anyone who is willing to go face the challenges and evil that you ladies and gentleman face!
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'72 K20 Cheyenne: 5” lift, 35’s, front dana 60 blah blah blah… http://67-72chevytrucks.com/vboard/s...d.php?t=662879
‘69 K10 SWB: 4” lift 33”s… in a million pieces http://67-72chevytrucks.com/vboard/s...d.php?t=805206
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Old 11-25-2015, 12:32 PM   #8
Mrturner1
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Re: New to the forum

Quote:
Originally Posted by flashed View Post
Welcome ,Im in for pics .
ill take some today its an awesome looking truck
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Old 11-25-2015, 12:38 PM   #9
Mrturner1
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Re: New to the forum

thanks guys< hopefully a motorhead will see this post
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Old 11-25-2015, 12:52 PM   #10
NorCalC20LWB
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Re: New to the forum

Welcome from a fellow Sac area member, actually got my truck from a guy in Loomis, a stone's throw from you. I don't believe I've had a question about my truck that I couldn't find the answer to on this site, really knowledgeable and helpful people. Will be redoing the 350 on mine after the first of the year, so will be interested in what info you find on your build.
Brian
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Old 11-26-2015, 03:24 AM   #11
swamp rat
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Re: New to the forum

Talk to most performance muffler shops and they will tell you that a dual 2.25 system is good for 400HP, beyond that you need to go up to 2.5".

This link has a chart which is based on maximum flow that says 371HP for a 2.25 system, more than just maximum flow tho you need to be thinking velocity as it leaves the engine so a 3" system may be too big, you will need to calculate the estimated HP and then make a decision. Google "exhaust pipe flow rates" and have a good read.

http://www.exhaustvideos.com/faq/how...pipe-diameter/
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Swamp Rat build thread :
http://67-72chevytrucks.com/vboard/s...d.php?t=595019

72 3/4T 4X4
4" BDS Lift
33" BFG's
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