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68 coupe build

resto mod

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#221 cajun

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Posted 3 weeks ago

Yes lets see some pic.
Yes lets see some pic.

#222 KeyKeeper

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  • Year: 1968
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  • Engine: 355SBC
  • Transmission: 700R4

Posted 3 weeks ago

Attached File  20170329_153207.jpg   226.03KB   0 downloads  Attached File  20170328_213333.jpg   66.3KB   0 downloads  Attached File  20170328_213342.jpg   71.42KB   0 downloads

 

New carb going on.  Adapter will be here today.  850cfm.  This is a loaner, have a holley ultra HP950 in the mail just has not arrived.

 

Attached File  20170402_160835.jpg   165.37KB   0 downloads


I prefer to drive short distances....1,320 feet at a time

 

356ci SBC 11.8:1, Eagle rotating assembly, Wiseco .125" dome pistons, Lunati .600/.600 255/263 @ .050 solid roller, HP xp 950, super victor, Dart Pro 1 215cc head 2.08/1.62, all MSD ign, 700R4 3500stall....a work in progress. Est hp 588 thru chambered mufflers


#223 C U L8ER

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  • Year: 1969
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  • Engine: 400ci
  • Transmission: Auto

Posted 2 weeks ago

Really nice work and great progress!



#224 JOE68

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  • Year: 1968
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  • Model: hardtop
  • Engine: 350
  • Transmission: auto-2 jetaway

Posted 2 weeks ago

slicks look great...that about the width i run.     that carb otta drink some fuel....lol



#225 KeyKeeper

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  • Engine: 355SBC
  • Transmission: 700R4

Posted 2 weeks ago

Well drove the car last night around town.  What a huge difference the carb made.  Nice flat fuel curve and idles/cruises so smooth.  Some guy with an ecoboost F150 was really trying to race me lol.  I just let him go the first 4 times he goosed it while he was next to me.   Not the 5th......knocking the tires loose at 50mph sure gets the heart pumping...


I prefer to drive short distances....1,320 feet at a time

 

356ci SBC 11.8:1, Eagle rotating assembly, Wiseco .125" dome pistons, Lunati .600/.600 255/263 @ .050 solid roller, HP xp 950, super victor, Dart Pro 1 215cc head 2.08/1.62, all MSD ign, 700R4 3500stall....a work in progress. Est hp 588 thru chambered mufflers


#226 JOE68

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  • Year: 1968
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  • Model: hardtop
  • Engine: 350
  • Transmission: auto-2 jetaway

Posted 2 weeks ago

good to hear it's running strong.      theres always some clown who wants to take ya on.     this guy in a hemi truck messed with me so I showed him what I had...lol



#227 Scottcm

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Posted 2 weeks ago

Well drove the car last night around town.  What a huge difference the carb made.  Nice flat fuel curve and idles/cruises so smooth.  Some guy with an ecoboost F150 was really trying to race me lol.  I just let him go the first 4 times he goosed it while he was next to me.   Not the 5th......knocking the tires loose at 50mph sure gets the heart pumping...

Nice Derrick!!!!  Nice to hear that you are running it on the streets!!



#228 KeyKeeper

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  • Model: Firebird
  • Engine: 355SBC
  • Transmission: 700R4

Posted 2 weeks ago

Swapped carbs again.  Put an HP 950 on it, much better than even the 850 pro form. 


I prefer to drive short distances....1,320 feet at a time

 

356ci SBC 11.8:1, Eagle rotating assembly, Wiseco .125" dome pistons, Lunati .600/.600 255/263 @ .050 solid roller, HP xp 950, super victor, Dart Pro 1 215cc head 2.08/1.62, all MSD ign, 700R4 3500stall....a work in progress. Est hp 588 thru chambered mufflers


#229 KeyKeeper

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  • Year: 1968
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  • Model: Firebird
  • Engine: 355SBC
  • Transmission: 700R4

Posted A week ago

Living with an HOA sucks....js.


I prefer to drive short distances....1,320 feet at a time

 

356ci SBC 11.8:1, Eagle rotating assembly, Wiseco .125" dome pistons, Lunati .600/.600 255/263 @ .050 solid roller, HP xp 950, super victor, Dart Pro 1 215cc head 2.08/1.62, all MSD ign, 700R4 3500stall....a work in progress. Est hp 588 thru chambered mufflers


#230 JOE68

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  • Year: 1968
  • Make: firebird
  • Model: hardtop
  • Engine: 350
  • Transmission: auto-2 jetaway

Posted A week ago

I take it they don't appreciate your car Derrick?     some ppl got no sense of humor...lol



#231 KeyKeeper

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  • Engine: 355SBC
  • Transmission: 700R4

Posted A week ago

Well someone sure doesnt and has complained a bunch of times so they finally emailed me a nasty letter.  After back and forth for 3 days, they finally admitted they didnt write the HOA rules, that the developer did and they agree that the rules make no sense and that I havent really violated any rules but its considered a nuisance.  Lucky for me, most of my tuning is done so I am starting the car less and less these days.  


I prefer to drive short distances....1,320 feet at a time

 

356ci SBC 11.8:1, Eagle rotating assembly, Wiseco .125" dome pistons, Lunati .600/.600 255/263 @ .050 solid roller, HP xp 950, super victor, Dart Pro 1 215cc head 2.08/1.62, all MSD ign, 700R4 3500stall....a work in progress. Est hp 588 thru chambered mufflers


#232 KeyKeeper

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  • Year: 1968
  • Make: Pontiac
  • Model: Firebird
  • Engine: 355SBC
  • Transmission: 700R4

Posted 5 days ago

Motor will start coming out tonight.  Not sure what happened but lost all oil pressure at idle.  Cruise is fine but hot, in gear is 0-2psi.  Once off idle its about 20psi hot.  40+ @ 2500rpm.  Either way, i have no confidence in the bottom end now.  No noise, no knocking.  Im betting cam bearings are wasted. 


I prefer to drive short distances....1,320 feet at a time

 

356ci SBC 11.8:1, Eagle rotating assembly, Wiseco .125" dome pistons, Lunati .600/.600 255/263 @ .050 solid roller, HP xp 950, super victor, Dart Pro 1 215cc head 2.08/1.62, all MSD ign, 700R4 3500stall....a work in progress. Est hp 588 thru chambered mufflers


#233 JOE68

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  • Year: 1968
  • Make: firebird
  • Model: hardtop
  • Engine: 350
  • Transmission: auto-2 jetaway

Posted 5 days ago

are you sure oil didn't get diluted with excess fuel ?



#234 KeyKeeper

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  • Engine: 355SBC
  • Transmission: 700R4

Posted 5 days ago

Fresh straight 30w.  I changed it last weekend.  Has no smell of fuel in it.  Its full.  I pulled it to 7400rpm (highest its ever been intentionally) and it felt great.  However, no pressure afterwards.  Figure its 1 of 3 things

 

1. Nut is backing off of the oil pump mount stud, causing leak at machine fit

2. Center main was not milled properly during line bore/hone

3. Cam bearings are wiped out due to improper bearing install and excessive spring pressure.

 

I have 5 bolts left (2 bell housing, 3 converter bolts) and its out.  However, my neighbor has my stand with his LT1 on it.  So I will be making a trip to my mothers shop to pick up a second stand and then yanking it out.

 

Going to pull the valve covers/pan and roll it over on its top to see if the pump is lose.  If not, going to pull the pump plate and look for abnormal pump wear and pr valve issues.  If none, then Im going to dump oil into the pump cavity, and pressurize it with compressed air and look for obvious signs of oil/air leakage. I'll have to reinstall the distributor to check this.


Edited by KeyKeeper, 5 days ago.

I prefer to drive short distances....1,320 feet at a time

 

356ci SBC 11.8:1, Eagle rotating assembly, Wiseco .125" dome pistons, Lunati .600/.600 255/263 @ .050 solid roller, HP xp 950, super victor, Dart Pro 1 215cc head 2.08/1.62, all MSD ign, 700R4 3500stall....a work in progress. Est hp 588 thru chambered mufflers


#235 JOE68

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  • Year: 1968
  • Make: firebird
  • Model: hardtop
  • Engine: 350
  • Transmission: auto-2 jetaway

Posted 4 days ago

dang man...7400 rpm is pushing it.     sounds like you got a solid plan.    keep us posted



#236 Terriblehondo

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Posted 2 days ago

sorry to hear that I hope the damage is minimal



#237 KeyKeeper

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  • Transmission: 700R4

Posted 2 days ago

7400 is pretty nominal.  Balanced assembly, decent rod length, short stroke, light pistons. 

 

Pulled the pan, pump was tight.  Pulled the pump plate and gears, poured oil into the pump cavity and pressurized it with 75psi air and cant find any obvious leaks.  Pulled all the mains one by one, they all look great.  Rod bearings look brand new still.  Went ahead and plast-gauged the mains and ended up at .003" which is a little loose but with straight 30w still doesnt add up to no oil pressure.  The bypass valve in the pump didnt quite feel right but its not stock.  Has the pink spring so hp/hv pump for sure.  I dont really want to tear the whole thing down but I dont want to put a new pump and .001 undersize mains in it only to have the same problem.  Going to pull the rockers and push rods tonight and get the cam out.  The cam brg feed just about everything in the motor and this leak has to be early in the lube schematic to be so drastic. Im not real comfortable about installing cam bearings with the motor assembled so I may just tear the whole thing back down.  Just more $$$ I dont have and with all the kids Bdays coming up, will take quite some time to get it back together.


I prefer to drive short distances....1,320 feet at a time

 

356ci SBC 11.8:1, Eagle rotating assembly, Wiseco .125" dome pistons, Lunati .600/.600 255/263 @ .050 solid roller, HP xp 950, super victor, Dart Pro 1 215cc head 2.08/1.62, all MSD ign, 700R4 3500stall....a work in progress. Est hp 588 thru chambered mufflers


#238 cajun

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  • Engine: 403
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Posted 13 hours ago

Wow sorry to hear that Derrick and good luck.

#239 KeyKeeper

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  • Engine: 355SBC
  • Transmission: 700R4

Posted Today, 05:18 AM

Its down to bare block. Got one of those telescopic mirrors and wow...what a mess.  All the cam bearings are installed wrong and they are ruined.  #1 is correct, but 2/3/4/5 are all the wrong bearings, and installed at 6:00 when they are supposed to be installed at 2:00.  Pretty sad a machine shop thats been in business that many years cant even install a set of cam bearings right.  So I'll take it down to my little gem hole in the wall machine shop in Thrall TX.  They do stellar work and quick too.

 

What the real pickle is, I have material transferring between head and piston!  Talk about tight tolerances!  So I'll have to step up to the cometic head gaskets. Dang they are expensive.


I prefer to drive short distances....1,320 feet at a time

 

356ci SBC 11.8:1, Eagle rotating assembly, Wiseco .125" dome pistons, Lunati .600/.600 255/263 @ .050 solid roller, HP xp 950, super victor, Dart Pro 1 215cc head 2.08/1.62, all MSD ign, 700R4 3500stall....a work in progress. Est hp 588 thru chambered mufflers





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