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Old folk's .....er' Olds folks

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vwagon13

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« on: November 07, 2015, 07:39:10 PM »
Let's hear about your Oldsmobile motors. What you've done to it, what you had done to it. And  horsepower,how much  you think they're putting out. Thanks!
"Onward thru the fog"


Maker

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« Reply #1 on: November 07, 2015, 08:21:26 PM »
10.25:1 461 fully oil restricted bottom end massaged stock rotating assembly mains are studded, ka heads ported polished  heat risers filled  oil drains opened up, Offy tunnel ram  2 660s and I haven't picked out a cam yet  or made a decision on a gear drive or chain

crewchief22

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« Reply #2 on: November 07, 2015, 08:45:41 PM »

This Olds had seen better days.
  • Boat #1: '77 Hondo Pantera GT Jet
"Racing is life!  Anything that happens before or after, is just waiting"    Steve McQueen

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TrollerDave

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« Reply #3 on: November 07, 2015, 09:10:04 PM »
1,000,000 horsepower.



10:1 tunnel ram with 2 750 double pumpers, Mondello JM 25-28 cam. Had it built 20 years ago before I knew about all the mods that should be done.
Still runs good. The only problem is extended runs at high RPM. Too much oil in the valve covers and blow-by, and oil spills out of the breathers, lands on the headers and catches fire. Good times.

Bunger

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« Reply #4 on: November 07, 2015, 09:22:34 PM »
Mines around 9-9.5:1 balanced rotating gear forged Pistons ported Ka heads oft tunnel ram with 660s setup by the carbshop clay smith cam. Guy who built it estimated 400-425hp. Gets my heavy hallett up to 68mph


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Bunger

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« Reply #5 on: November 07, 2015, 09:24:06 PM »
Oh and last winter I did the external oil drain back lines. They work Bitchin. No more squirtin oil out of the puke tank. No oil mods internally and a high volume oil pump


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69kona

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« Reply #6 on: November 08, 2015, 11:19:04 AM »
10.5 to 1 Srp pistons. Oil mods on heads and block for drain back . ka heads ported and flow benched with a 3 angle valve job . Had rotating assembly balanced. I was cheap on the rods and used stock rods but had them shot peened and resized . Went with a Erson cam JB 100 has a nice lope to it ... HP?
Guessing 550 or so . I've had pretty good luck with the 455 olds. The one I have in my other boat is going on 9 years . I believe they stay together and live a happy life if bearing clearness is set up right and line bore is checked.


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SSpeeDEMONSS

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« Reply #7 on: November 08, 2015, 02:16:18 PM »
Complete Mondello built engine some time back in the 90s I believe. 461". Tunnel with 2 600s. All the oil mods. Worked bottom end. Ported heads. Guessing somewhere in the 475-525hp range. It sure makes a lot of noise. Oh, and it's for sale too.

Garrett

Bunger

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« Reply #8 on: November 08, 2015, 05:02:20 PM »

10.5 to 1 Srp pistons. Oil mods on heads and block for drain back . ka heads ported and flow benched with a 3 angle valve job . Had rotating assembly balanced. I was cheap on the rods and used stock rods but had them shot peened and resized . Went with a Erson cam JB 100 has a nice lope to it ... HP?
Guessing 550 or so . I've had pretty good luck with the 455 olds. The one I have in my other boat is going on 9 years . I believe they stay together and live a happy life if bearing clearness is set up right and line bore is checked.


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Phuck I really want some of those valve covers


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455miller

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« Reply #9 on: November 08, 2015, 05:20:21 PM »
Phuck I really want some of those valve covers


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I was gonna say the same thing. Where can I find those?

vwagon13

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« Reply #10 on: November 08, 2015, 07:02:53 PM »
E-bay#351571408847. $160 w/$25 shipping.  No holes. 
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69kona

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« Reply #11 on: November 09, 2015, 06:45:30 AM »
Yup eBay but I wouldn't get the ones speed master for 110 unless your u straighten and make flat again  . The set for 160 is better quality


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vwagon13

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« Reply #12 on: November 09, 2015, 08:34:57 AM »
You know its kinda funny: Those v/c's, yank  that ugly oil fill tube off,add some sweet breathers w/ an lines to a puke tank or to header fittings.Look'n badazz, wouldn't recognize it as an Olds.
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69kona

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« Reply #13 on: November 09, 2015, 09:01:58 AM »
This is my other olds forged trw pistons 9to1compression balanced the rotating assembly and a few oil mods going on 9 years just freshen it up with bearings and rings still like new like ... This one I squeeze 125 shot of nos


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vwagon13

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« Reply #14 on: November 09, 2015, 06:13:11 PM »
That's one bad puppy😨.  Maybe 600+ on the bottle?
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che77y

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« Reply #15 on: November 09, 2015, 09:07:39 PM »
10 hrs new 461 main oil mods 290 comp forged speed pro slugs stock rods restricted push rods offy 360 750 dp holly 9.5 or so on k heads not sure on the power but it sure is fun :)

69kona

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« Reply #16 on: November 10, 2015, 06:47:26 AM »

10 hrs new 461 main oil mods 290 comp forged speed pro slugs stock rods restricted push rods offy 360 750 dp holly 9.5 or so on k heads not sure on the power but it sure is fun :)
Nice.. I bet it runs hard. That intake-manifold is a good choice lots of torque



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vwagon13

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« Reply #17 on: November 10, 2015, 07:44:09 AM »
Yeaah and the bottom looks good to LOLLOL😲
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che77y

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« Reply #18 on: November 10, 2015, 03:36:26 PM »
Nice.. I bet it runs hard. That intake-manifold is a good choice lots of torque



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haa oops they are c heads and yea the bottoms nice lol I strangely have no motor pics yet..... I'm digging this thread tho step up guys!



Yeaah and the bottom looks good to LOLLOL😲

69kona

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« Reply #19 on: November 10, 2015, 05:12:43 PM »
This is one of our buddy Jonnys motor that he got done ... I want the aluminum heads off it lol $...


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che77y

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« Reply #20 on: November 10, 2015, 09:16:41 PM »
This is one of our buddy Jonnys motor that he got done ... I want the aluminum heads off it lol $...


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dayum :p

69kona

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« Reply #21 on: November 12, 2015, 08:36:33 AM »
No more olds guy's around? Lol


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vwagon13

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« Reply #22 on: November 12, 2015, 10:33:47 AM »
I've seen a whole bunch of tunnel rams. There too too cool look'n. Do they really "work" at 3/4500rpm? ! Not chopp'n T/Rams, hell I love um'. But they spendy specialy polished, an I gotta have'm polished. BTW, oil  and  .  filters, what  kinds do  .  you guys use? What kinds won't you use? And spark plugs, what to use and does anybody "index" them any more?  Is there a need to with new plugs?
"Onward thru the fog"

69kona

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« Reply #23 on: November 12, 2015, 04:54:17 PM »
Napa silver filter .... 20/50wt Napa brand oil


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Bunger

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« Reply #24 on: November 12, 2015, 05:40:41 PM »
I run a k and n 2003 filter with 50wt oil. I think my plugs are auto lite 85s gapped at .30ish


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