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#21 |
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Join Date: May 2006
Location: Louisville , KY
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Boys, when you build a motor for GT you gotta know there are a lot of people out there who are gonna get it hit. Think about the guys that can buy a new motor any time they want to. Especially if it's a Chevy.
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Greg Hill 4171 STK |
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#22 |
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Join Date: Nov 2002
Location: Potomac,IL
Posts: 279
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Charlie Bob, there would be more room for improvement if it wasn't basically a super stock motor already. Couldn't resist.
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Monte Howard 3209 STK, 3208 SS |
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#23 | |
Senior Member
Join Date: Mar 2008
Location: Chicago, IL
Posts: 701
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Chevelle 283 cubic inches 9.25:1 compression Rochester 4GC Carburetor 1.72 1.50 valves Cobra Jet 281 cubic inches 11.0:1 compression 2x 62.5mm throttle body 2x 1.34 1x 1.50 valves Cubic inches are a wash, compression to the CJ, carb/throttle body to CJ, valve area to CJ (plus lighter intake valves). Take away the cam lift difference and intake difference because we're talking SS, add in the overhead cam and better heads to start with, and it's looking like that 281 of yours should be making quite a bit more power than that 283 Charley. I'm not going to say that you don't work hard on your car because you do, it's a lot more of a real stocker than many new cars out there, but I do not believe you have built a true SS motor with all of the tricks and good parts that is necessary for most combinations to run fast.
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3207 D/SA, C/ED |
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#24 |
Senior Member
Join Date: Jun 2005
Location: Nashville N.C.
Posts: 506
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what are you and Worner talking about ??? You guys are not even at the STOCK hp rating for the LT1 .........isn't that kind of cheezy ????
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NHRA AND IHRA STOCK ELIMINATOR 2772 |
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#25 |
Veteran Member
Join Date: Mar 2005
Location: Sand Springs, OK
Posts: 8,132
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An actual stock LT1 makes nowhere the NHRA Stock Eliminator HP rating. There is a LOT of work in those heads that is passing tech. Plus, it is a very efficient car. Light, aero-slick with a lot of natural engine set back. If it was rated at what a factory stock LT1 actually makes they would be even more dangerous.
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Ed Wright 4156 SS/JA |
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#26 |
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Location: Newport News, VA
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Can anyone shed some light on why the exact same motor, 1966 275HP 327 Chevy, should be rated differently in the three body styles (Nova, Chevelle and Full-size) it was originally available in? I can understand that there might have been a difference from the factory, but are people building these motors differently depending on which vehicle they are putting them in?
Thanks!
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Lew Silverman #2070 "The Wagon Master" N/SA |
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#27 |
Junior Member
Join Date: Aug 2004
Location: Sherwood Park, Alberta
Posts: 99
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Maybe the 327's without 4GC's are the red headed step children . Once again the 68 327-250/265 GT combo gets no reduction. . Maybe the idea is to have older cars run SS and only slipery cars run GT.! However, the 68 327/275 stock version is now 265>
anyone got a 68 Chevelle?
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Mike Semeniuk 632 GTMA |
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#28 | |
Senior Member
Join Date: Jun 2005
Location: Nashville N.C.
Posts: 506
Likes: 4
Liked 101 Times in 27 Posts
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NHRA AND IHRA STOCK ELIMINATOR 2772 |
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#29 |
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Join Date: Oct 2007
Location: Chesterfield,Va.
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Rusty Super Stock guys are a lot smarter then Stockers who have the Lt1. If you run more than 1.00 under NHRA will beat you up with the ink pen. Thats why we are at 346 now.
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Sterling Simmons jr 1131 STK |
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#30 |
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Join Date: Mar 2005
Location: Sand Springs, OK
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I don't see why. Maybe you need to build one to show the rest of us how it should be done.
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Ed Wright 4156 SS/JA |
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