We ended up sliding a 2x2 3/16 piece of square stock into the boom to extend it 10 inches it worked like a charm ! I'm sure the engineers that designed it would be cringing

 

Nothing wrong with that I had mine barely in and rachet straps supporting both sides. I was thinking the same thing or just getting a longer bar made up.

 

What's a racist strap?

 

Stupid auto correct.

 

I also have an extra extended slide in boom for one of my heavier duty engine pickers. I have a set of J heads stacked on the outside of the boom. The top J head has an exhaust manifold still bolted on so it's probably like a 150 pound counter weight, just in case. I have pulled the engine and transmission out of my 1971 Delta with no problems. It's a longer reach than the 1967 98's.

 

Now there's a new use for a set of j heads ! Here I thought they were only used for boat anchors and a good idea ,I had to use my big brother as a counter weight just in case

 

today was the day to fire it back up after about a week of wrenching! a little gas in the carb and it did what its supposed to .got it up on high idle and fluctuated it a little for a good 25 minutes .sounded awesome! we set the timing at 20 degrees for now until i can get it out on the road.my original quadra jet with the newly added electric choke worked flawlessly with great response.so far so good with no leaks .will put a few miles on it then change the oil.

 

just wanted to update this thread if anyone is watching .everything is now back together ,cam was broken in and have been testing and tuning for a while .have plans to put it on a chasis dyno in the coming weeks .im curious to know what the rwhp is after the upgrades.wish i would have done a before upgrade run ,but should be able to do the math to get close.

 

Nice progress!! It's always good when you do work like that, you get it back together and it actually fires!! LOL.

 

did the dyno test today not exactly what i was hoping for ,but all in all pretty solid.its plain to see why it was faultering when i really laid into it.(which was discussed in a seperate thread of mine)based on these graphs ,any opinions ? my dyno guy said first and foremost change the secondary metering rods in my quadrajet.it is the factory 76 carb with ct rods which are way on the lean side of the scale.and you can see on the graph how it leaned right out around 4000 rpms .i welcome any advice.thanks

 

took his advice and found a set of cv secondary metering rods for the quadrajet which are way richer than my ct's and it was an unbelievable difference .then came the rattling noise! ugh!

 

i know this thread is old now ,but its been raining all day and i got bored so thought i might try posting a video of the end result of the upgrades

 

Nice car. Sounds like a noisy rocker.

 

Nice!

 

randy you could be right but i did check them all and torque to specs. Since that video i pulled the intake and removed the cast iron block off plugs in the heat crossovers it was the second time i had them start to rattle .

 

Cool, love Olds torque on display. I did get my boom extended on my engine hoist. I didn't have J heads but a pair of 4A 403 heads and Dodge 360 Magnum heads which always crack were needed to counter weight with the motor in the air.

 

If it were me I would remove all of the rockers and bridges and inspect them for wear. If they all look good then you could have a bad lifter.

 

 

 

I know this is a really old thread, but you wouldn’t happen to remember what cam you used would you? I’m doing the same thing. I have a bone stock 76 455 with massive dished pistons and just want to see what I can do to help it as cheaply as possible and put it in a 87 cutlass. I already have a performer intake and w30 manifolds for it. Thanks

 

The cam for this car was sold to me by Dick Miller. The invoice stated special grind from comp cams .cam card says ol 5432/270h-5 h112 . I'll try to get a pic of the card and post it

 

I gave Dick all the specs from my car and he cam up with this cam.

 

thank you for the reply, unless I missed it reading the thread, you kept the deep dish 76 pistons in the motor, correct?

 

Yes the factory deep dish pistons it has dual exhaust turbo 400 trans and 256 rear gears . We redid a set of e- heads and put and edelbrock performer on it . The car is not a beast off the line by no means but will cruise at 80 all day long .It still does have the umph to lay down a posi though . Good luck with your motor 👍

 

Was that a one wheel burnout?

 

256 posi

 

than you for your time. Sounds like my motor will be very similar to your set up. I have a set of G heads with big valves I’ve ported, I will put on it and but I’ll leave the bottom end alone. The goal for this car is just to be a good driver that is some what peppy and appear to be a bone stock 87 cutlass.

 

This is often the case. But you did gain nicely from stock. 205 at the wheels converts to 260 net at the crank vs the born in 190 hp. However 40 of the 70 hp gain comes from just having true dual exhaust... So 30 hp from your formula and labor.
Around 150 hp at the wheels stock.
At least you didn't pay someone for the build. And you have a freshened engine. Bottom line I feel your frustration. Tweak and tune ad nauseum. Unless the components are grossly mismatched it should improve. Otherwise its still much better than stock, and should perform nicely with the right drivetrain. The TH400 is eating a chunk of horse, but i get it being the 455 hits the transmission with big block torque and its lugging over 2 tons. 3.42s will make a world of difference, but 80 MPH will be 3500 RPM vs the current 2600. If you want it to feel explosive off the line. You need the numerically higher gear ratio to compensate for the torque drain of the 4100 lb curb weight.

1 lb-ft of torque is gained for every 22.04 lb removed from the vehicle.

https://www.motortrend.com/how-to/04...eduction-tips/

My car rips the tire on a dead punch like your power braking video. Yes your engine makes more power. But a 69 Supreme weighs 600 lbs less than a 76 Supreme. My performance indicates I have around 195 hp at the wheel.

 

Just a stock swap if engine is healthy would make it as quick as a 87 442, minus the drive train. Add a 442 drivetrain plus this builds extra 70 hp. Lights out on a 3500 lb car. Now you are as quick as a stock cold air Grand National, or stock W31.