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#41
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In a straight axle gasser syle car with the original front frame and crossmember replaced by rectangular tubing, along with front to rear braces, is using a steel front and steel mid plate enough? Or do I need a cross member added back in? It also has a 10 point cage.
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#42
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I left them out. Probably should add them one of these days. The car has just been sitting. Too many other things going on the last 2 years.
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Todd Sedlmeier Who ever thought pinewood derby cars would lead to this! October 2004 HPP Shootout participate http://www.highperformancepontiac.co...out/index.html 86 Grand Prix 535 High Port 8.93 @ 153 65 GTO 433 High Port 12.04 @ 113 |
#43
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got it!
Got the mid plate today. 32 inches long, close to where it will mount in my frame rails is 28.5 inches, so there is enough meat to do what you have too. I took the 6 converter spacers out, it did not come green I sanded and put a coat of self etch primer.
Can't wait to get the heads and tranny back so I can start this. I have soooo many projects on the car now!! It's snowballing! |
#44
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Nice! So Are you going to use a front plate Also?
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Darby 74 Grandville 2Dr 455 c.i 4550# 2011 1.60 60 ft,7.33@94.55-11.502@117.74 2017, 74 firebird -3600 lbs (all bests) 1.33 60 ft, 6.314@108.39 9.950@134.32 M/T 275/60 ET SS Drag Radial 2023,(Pontiac 505) 1.27 60 ft, 5.97@112.86, 9.48@139.31.... 275/60 Radial Pro's |
#45
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Don’t want to over complicate your project, but something we did on my ‘78 that really works well was to put a locating dowel on each frame bracket for the mid plate. Load the engine/trans, locate mid plate on the dowels, tilt/lower to align front plate bolt holes and done.
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#46
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No I am not going to use a front plate. It is a real street car, I am running the poly mounts from Butler, and I was thinking of putting an isolater in between the mid plate and frame mounts for the mid plate to help with vibration.
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#47
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Quote:
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#48
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So take the top two engine trans bolt holes and install a long thread stud and lock tight it in . Use these studs to slide the motor in and put nuts on the back side. After you mounted a front plate weld angle iron horizontally under the plate for support and in front of the mount. You drop in the Motor and rest the front plate on the angle iron and just slide it in place. Works great.
Our Front Plate for a 78 T/A fits great and you don't even notice it. You install it with the STD motor mounts in place and the remove the mounts after it is located. See our site for pictures.
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Bob C. Quickest, Fastest, Best selling Pontiac Aftermarket Block IA II and Tiger Heads Boss Bird Funny Car Best pass to date 08/06/2016 6.027@231.64 Allpontiac Big Chief Aluminum Engine Block http://www.AllPontiac.com |
#49
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Ive run these, just welded them up some to adapt pattern to a bop. Probably not as strong since there is a seperate piece each side. But bolts to backside of trans so no spacers or longer dowel pins to deal with.
https://www.speedwaymotors.com/Speed...unts,3278.html
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Illinois Outlaw Gassers 6.27@107 9.97@131 |
#50
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Quote:
Bob, Does your front plate clear a manual steering box on a 74 bird?
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Darby 74 Grandville 2Dr 455 c.i 4550# 2011 1.60 60 ft,7.33@94.55-11.502@117.74 2017, 74 firebird -3600 lbs (all bests) 1.33 60 ft, 6.314@108.39 9.950@134.32 M/T 275/60 ET SS Drag Radial 2023,(Pontiac 505) 1.27 60 ft, 5.97@112.86, 9.48@139.31.... 275/60 Radial Pro's |
#51
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Darby,
Contact the office and ask Frank. He would know best. I know for sure it works on a power steering car. We have sold more then I can count of the F body Front Plates. If it does not fit you may return it if not cut up.
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Bob C. Quickest, Fastest, Best selling Pontiac Aftermarket Block IA II and Tiger Heads Boss Bird Funny Car Best pass to date 08/06/2016 6.027@231.64 Allpontiac Big Chief Aluminum Engine Block http://www.AllPontiac.com |
#52
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Will Do Bob, Thanks!
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Darby 74 Grandville 2Dr 455 c.i 4550# 2011 1.60 60 ft,7.33@94.55-11.502@117.74 2017, 74 firebird -3600 lbs (all bests) 1.33 60 ft, 6.314@108.39 9.950@134.32 M/T 275/60 ET SS Drag Radial 2023,(Pontiac 505) 1.27 60 ft, 5.97@112.86, 9.48@139.31.... 275/60 Radial Pro's |
#53
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progress
Got it cut to fit in between the rails, I trimmed near my oil filter housing to make it easier on me. Waiting for my tranny to come back so I can connect it and mount it, then I can clamp and weld the side brackets and bolt to the mid plate. pretty simple job.
The one photo is my old mid plate lol. |
#54
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I have no idea why my photos turn when I post to this site!!!
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#55
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Does your oil filter tilt back back at all? Mine is the angled one , will it still clear the plate?
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Darby 74 Grandville 2Dr 455 c.i 4550# 2011 1.60 60 ft,7.33@94.55-11.502@117.74 2017, 74 firebird -3600 lbs (all bests) 1.33 60 ft, 6.314@108.39 9.950@134.32 M/T 275/60 ET SS Drag Radial 2023,(Pontiac 505) 1.27 60 ft, 5.97@112.86, 9.48@139.31.... 275/60 Radial Pro's |
#56
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Looks like it's dual pattern for the trans? Might go this route after seeing your thread and it'll be money if dual pattern. Just weld a nut on the back
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71 grand prix SJ 4280# 462 new for 2008 - 8.7:1 , 98cc 6Xs 246/209, 342 12bolt , BW S475 turbo JGS 50mm WG 56mm BOV. 600hp the easy way! Last edited by n2ogpsj462; 01-28-2018 at 08:50 PM. |
#57
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Or ditch stock frame and do one of these.
Btw my stock frame with rack mounts, bop motor plate mounts, mid plate mounts and oil pan cut out will be for sale if anyone needs a nice modified stock frame.
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540 c.i. Ultra Street Combo Tiger Heads with Tiger Intake Induction Solutions fogger with .046 jet First ultra street/ultimate street NOS car to get into the 4's! 1.079 4.559 153.23. 3100 lbs 7.77 @ 169 1/4 Mile (2015) with EHTTFMF!! T2TTFMF! Special Thanks to: Ron at Rhodes Custom Auto Butler Peformance Jim Hostler's Transmissions (HOSGTO) on here Induction Solutions BES Racing Engines. Cheeseburger VP Racing Fuels Calvert Racing |
#58
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Mine angles in, it clears, I just trimmed the bottom of the plate to make getting the filter wrench on easier.
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#59
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Not sure what the other pattern is for, but yes there is a dual pattern.
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#60
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SBP LOL! Nice set up. Not sure it would work for an a body. What are you going to now?
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