Author Topic: 424 Oldsmobile Stroker 403  (Read 2987 times)

lugnuts

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Re: 424 Oldsmobile Stroker 403
« Reply #40 on: November 19, 2018, 10:00:50 AM »
I thought you were going with the smaller AC compressor?
Check out the progress of my restoration on my YouTube Channel. Click here: TheOriginalLugnuts (Updated Weekly)
  
" daddy my hat blew off, I hope your darn head was in it"

olds403

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Re: 424 Oldsmobile Stroker 403
« Reply #41 on: November 19, 2018, 10:10:57 AM »
This is my dad’s car.  The sanden went on my Red Trans am. I tend to be the guinea pig for test and mock ups. 


kingwil

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Re: 424 Oldsmobile Stroker 403
« Reply #42 on: January 08, 2019, 04:02:13 PM »
any updates on this 424 Stroker 403 Olds Build? 
79 Nocturne Blue 403 Firebird TA
72 Viking Blue 455 Cutlass Convertible

olds403

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Re: 424 Oldsmobile Stroker 403
« Reply #43 on: January 12, 2019, 10:32:35 PM »
The shop is doing a 64 vette 427 swap.  We are scheduled at end of the
this month.  We also lost our painter to cancer so that changes the plan quite a bit. 

Nexus

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Re: 424 Oldsmobile Stroker 403
« Reply #44 on: February 04, 2019, 03:22:18 PM »
Hope things are well, and getting sorted out!!
Charlie

79 Esprit but like many, it will be a T/A clone
(18 years and counting but still have her)

Re: 424 Oldsmobile Stroker 403
« Reply #44 on: February 04, 2019, 03:22:18 PM »

olds403

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Re: 424 Oldsmobile Stroker 403
« Reply #45 on: February 10, 2019, 05:24:01 PM »
It is Alive Feb 10, 2019


The expression on my Dad's face was worth the 18 months of hard work that everyone all put into this day. 
Would not have been possible without the help of the following:

My wife - thought she would have killed me by now. The countless trips to the machine shop, fed ex, ups, and phone calls.  Trips to the shop some 45 mins each way. 
My brother - for all the help along the way. 
My dad - who pulled this all together after 25 yrs. 
Restoration, Machine Shops and Suppliers. 
Jackson Racing
Precision Engines
Champion Racing Heads
J&S Machine
Mark Remmel - Cutlass EFI

The video is on YouTube as photobucket is worthless now

VIDEO LINK:
https://youtu.be/p4_oCtgfCDg







Aus78Formula

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Re: 424 Oldsmobile Stroker 403
« Reply #46 on: February 10, 2019, 06:05:14 PM »
Fantastic!

Jack

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  • 1971 Esprit TA Clone W72 1972 Formula 68 350 HO
Re: 424 Oldsmobile Stroker 403
« Reply #47 on: February 10, 2019, 06:50:42 PM »
Sounds awesome.




Regards, Jack

Nexus

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Re: 424 Oldsmobile Stroker 403
« Reply #48 on: February 11, 2019, 10:53:37 AM »
Oh Yeah...that's a great sound!!!

Charlie

79 Esprit but like many, it will be a T/A clone
(18 years and counting but still have her)

lugnuts

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Re: 424 Oldsmobile Stroker 403
« Reply #49 on: February 11, 2019, 11:43:53 AM »
What a difference, can't wait to see what numbers this car puts down.
Check out the progress of my restoration on my YouTube Channel. Click here: TheOriginalLugnuts (Updated Weekly)
  
" daddy my hat blew off, I hope your darn head was in it"

kingwil

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Re: 424 Oldsmobile Stroker 403
« Reply #50 on: April 08, 2019, 02:33:00 PM »
Any plans to put this car on a Chassis Dyno and see how the rebuilt 403 (aka 424ci) does for HP and Torque, and what the RPM range is? 
79 Nocturne Blue 403 Firebird TA
72 Viking Blue 455 Cutlass Convertible

olds403

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Re: 424 Oldsmobile Stroker 403
« Reply #51 on: April 11, 2019, 09:08:55 PM »
Not with this one right now.  Give this until later this year.
Working on an extreme olds stroker small block.  I bought a 4” stroked crank last year ~ one of a dozen in existence.  Not much more to say...things are a bit slow now .

kingwil

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Re: 424 Oldsmobile Stroker 403
« Reply #52 on: May 28, 2019, 03:07:37 PM »
Any updates on the 424ci build?  Chassis Dyno Tests?   Earlier, maybe on page one of this posting, you provided a UTube Video of an Olds 403 stroked to 422ci with what looks to be Edelbrock Aluminum Big Block Heads (in the video) and this 422ci Small block Olds put out 570 HP and 540 Torque on the dyno.  Now, they didn't provide all the info/specs on the engine in the video, but I've heard that the Edelbrock Olds Heads can flow 290 to 300 cfm right out of the box and I think your #6 Heads flow around 250 cfm.

Since you mentioned that your 424ci engine build is modeled after the 422ci in the video, are you suggesting that the 424ci build will generate 550 HP or better with 9.7:1 compression, small block heads that flow 250 cfm, and a hydraulic roller cam with 227/233 duration @ .050 and lift in the .560 range? 
   
79 Nocturne Blue 403 Firebird TA
72 Viking Blue 455 Cutlass Convertible

Nexus

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Re: 424 Oldsmobile Stroker 403
« Reply #53 on: May 28, 2019, 08:19:10 PM »
^^^^^Good Question ^^^^^^^
Charlie

79 Esprit but like many, it will be a T/A clone
(18 years and counting but still have her)

olds403

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Re: 424 Oldsmobile Stroker 403
« Reply #54 on: May 30, 2019, 09:24:32 PM »
The small blocks 6 heads flowed 244 / 154 at .500. 
Stock edelbrocks are basically Iron c heads.  They flowed 238/172 at .500 out of the box.  I had an early set of these and was playing with them for something else. 

That 424 won’t be chassis dyno’ed or see results for a while.  The shop guy had some health issues and will be lucky to see paint by end of the year.  This motor was done locally and wont be using them again.  If you get all the parts its a good build.  Though probably not very durable. 

When i get time I will post the LS Olds later in the year.  It will be an extreme motor. 


Re: 424 Oldsmobile Stroker 403
« Reply #54 on: May 30, 2019, 09:24:32 PM »



Nexus

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Re: 424 Oldsmobile Stroker 403
« Reply #55 on: June 01, 2019, 12:34:51 AM »
Waiting with anticipation!!!
Charlie

79 Esprit but like many, it will be a T/A clone
(18 years and counting but still have her)

kingwil

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Re: 424 Oldsmobile Stroker 403
« Reply #56 on: June 13, 2019, 03:08:12 PM »
I have a few more questions about the Cam you are using in your 424ci SBO.  I think you stated that "The cam is 227/232 @.050 with .561 intake and .551 exhaust on 112 center".  My question pertains to how the engine runs and idles, and what type of vacuum the engine pulls with this Hydraulic Roller Cam, as it relates to power accessories.  A lot of 79 TAs have Power 4-wheel disc brakes, Powering Steering, and A/C.  Will the power accessories operate with this cam at idle?  Is there enough vacuum to operate Power Brakes at low RPM or idle?  Or would an electric vacuum pump or vacuum canister be needed with a Cam in the 230 @ .050 duration range?                                             
79 Nocturne Blue 403 Firebird TA
72 Viking Blue 455 Cutlass Convertible

olds403

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Re: 424 Oldsmobile Stroker 403
« Reply #57 on: June 16, 2019, 10:44:03 AM »
Hello, the cam is on 112 centers.  The car does not have power brakes- hydroboost. 
Its a custom made cam and it was a lunati.  The cam was spec’ed by Mark Remmel based on the combo and the heads/compression.  Its a lot smoother than you would think.  All the parts and heads cam from Mark minus the block machining that was done locally.  Its a big expense going roller as heads too need different springs. 

Just contact Mark ~ here is a link
https://classicoldsmobile.com/forums/big-blocks-2/mark-remmel-109733/

Re: 424 Oldsmobile Stroker 403
« Reply #57 on: June 16, 2019, 10:44:03 AM »
You can help support TAC!