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06-10-2009, 01:04 AM | #1 |
Registered User
Join Date: May 2009
Location: Jacksonville Nc.
Posts: 7
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Need SB or BB Suggestions
Ok guys need a little help here looking to build a motor for my 68' looking for serious horsepower but nothing wild looking maybe 500-600 hp. Goal is to play around with these sports cars want to eat em up on the street. I have my buddies say go with a 377,383,400 kinda confused something I want to build myself have spent serious money on what was suppose to be built motors and when i got it was half the HP. I have built a 468 BB Blown 1234HP but thats way to much for what I want still want to drive it everyday but want something reliable. Right now have a 4.11 Posi and 350TH tranny with stage 3 B&M shift kit. I am leaning towards a 383 all motor but all suggestions considered, and if its not to much to ask after all suggestions are reviewed would like to ask the lucky conestant for a full build sheet. Thanx to all who took the time.
Last edited by MARCUS'S 68; 06-10-2009 at 01:08 AM. Reason: wrong thread |
06-10-2009, 01:19 AM | #2 |
Registered User
Join Date: Dec 2007
Location: Mooresville, NC
Posts: 76
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Re: Need SB or BB Suggestions
If you want to chase sports cars... my suggestion is to do it in something other than a truck.
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06-10-2009, 05:32 AM | #3 |
ENGINE BUILDER
Join Date: Apr 2006
Location: Shortsville n.y.
Posts: 344
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Re: Need SB or BB Suggestions
You NEED a BIG cubic inch STROKER RAT MOTOR!!!!
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JIM ZAG |
06-10-2009, 07:13 AM | #4 |
Senior Member
Join Date: Jun 2001
Location: Shelbyville, KY
Posts: 3,261
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Re: Need SB or BB Suggestions
So you want to push 4,000lbs++ with terrible wind resistance and el-crapo brake and suspension against 3,000lbs---sport jobs many with outstanding brakes/suspension, and economical power---hummm. My 97 Corvette gave me 30mpg and would run away from almost any truck short of a hughly modified Ford Turbo Diesel putting out 6-700hp.
I don't like big blocks for street use--waste too much of everything. I do like the LS1 small block--you can modify---but I'd personally build a 350--010 lower with vortec heads, matching cam/intake/carb then hook up some nitrous for that occasional surprize factor. You could build that power plant for under $2 grand and get a surprizing amount of power. Just don't try to stop it with stock brakes!! |
06-10-2009, 09:20 AM | #5 |
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Join Date: Apr 2005
Location: Pensacola, FL
Posts: 17,858
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Re: Need SB or BB Suggestions
I just picked a 68 SWB a couple of weeks ago that has a 383 stroker with a Vortech Super Charger. It dyno'd at 630 TQ/ 622 HP @ 5500 rpm. The motor is supposed to built to go up to 7500 rpm, but I probably won't try it out . I'm very impressed with the combination. It has great acceleration and doesn't seem like it ever stops pulling. It will smoke any import in my area (at least through the 1/4, ), but I agree with Huck, the brakes leave a lot to be desired.
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Rob - https://www.instagram.com/hart_rod_c10 As Iron Sharpens Iron, So One Man Sharpens Another. Proverbs 27:17 FOR SALE: DBW pedal bracket - http://67-72chevytrucks.com/vboard/s...d.php?t=651123 FOR SALE: Hood Brackets http://67-72chevytrucks.com/vboard/s...d.php?t=679945 1987 Silverado SWB - 34.5K original miles http://67-72chevytrucks.com/vboard/s...d.php?t=801834 1969 SuperBurb - http://67-72chevytrucks.com/vboard/s...d.php?t=200387 1968 Farm truck - http://67-72chevytrucks.com/vboard/s...d.php?t=358692 1968 SWB - http://67-72chevytrucks.com/vboard/s...d.php?t=551258 1948 Chevy - http://67-72chevytrucks.com/vboard/s...=122164&page=3 |
06-10-2009, 09:38 AM | #6 |
Registered User
Join Date: Jul 2006
Location: Kunsan AB, South Korea
Posts: 187
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Re: Need SB or BB Suggestions
I agree, go with forged cubes and then throw a vortech/powerdyne/procharger on for serious hp. If you are looking for more torque then look at the "roots" type of blowers; they will give you more torque off the line.
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1971 C-10, 406ci, restoration begun! 406ci sb; zero decked, bored .030, edelbrock aluminum e-tec heads, edelbrock performer RPM intake, comp 268 cam, comp 1.6 pro-magnum roller rockers, MSD street fire HEI, MSD 8.5mm wires, Holley Street demon 770, Hedman LT headers. 10.6:1 compression, Air Ride Tech bags on all 4-corners. |
06-10-2009, 10:20 AM | #7 |
Registered User
Join Date: Dec 2008
Location: K.C. Missouri
Posts: 1,024
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Re: Need SB or BB Suggestions
Big Block Caddilac?
If you are looking for reliable, a 600 horse small block is not the best place to start. If don "Right" they are capable, but not even close to economical to build....throw a stroked 454/ forged pistons, and a NOS setup for the two or three times you race an sports car. This is the Hod Rodders Equation: Reliable,Fast or Cheap (You can only pick two) |
06-10-2009, 10:59 AM | #8 |
Registered User
Join Date: Dec 2004
Location: Northern AZ
Posts: 7,270
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Re: Need SB or BB Suggestions
Big ci is the only way to get 600hp reliable without it costing big bucks!! 496 strokers are pretty normal out of 454's or locate a 502 block then you could go bigger. Or as Huck said do a nice 350/383 at about 400hp and toss a hit of the funny gas when needed, much easier on parts vs trying to roll w/600hp daily, only boost the power when wanted/needed.
Last edited by 70rs/ss; 06-10-2009 at 10:59 AM. |
06-10-2009, 07:39 PM | #9 | |
Registered User
Join Date: Mar 2009
Location: independence mo
Posts: 2,111
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Re: Need SB or BB Suggestions
Quote:
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