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Topic Review (Newest First)
01-01-2005 11:34 AM
dubya30 Joe Mondello -
Dick Miller -

All great oldsmobile informational websites....

Oil restrictors should not be necessary unless you spend a lot of time above 3000 RPM. DO NOT put in a high volume oil pump. Olds engines have a problem with sucking too much oil up to the top and not returning very well. A high volume oil pump will only make things worse. There is no reason to not get a larger capacity oil pan with a pickup that goes with the pan. Also be sure that your pickup is set correctly.
01-01-2005 05:51 AM
willowbilly3 Do a google and find Joe Mondello and/or Ken Belle. Both of them specialize in olds. You really want to address the oiling issue. I think they make some restricters to keep more oil on the bottom end. There are also some good head mods that help. Porting off the smog bump in the exhaust and welding in a divider on the center siamesed exhaust port. Or pop for a set of Edelbrock heads. I'm not sure on the casting #s anymore but the W-30 heads were best but probalby hard to find.

BTW, Larry FWIW the 455 makes a great replacement for the sbc. I knew a guy that was converting Chevy pickups back in the 70s-80s. Not only did the big Olds make gobs more torque. It was much smoother and generally got measurably better fuel milage. I even considered one but the crappy cab and weak front end on the Chevy pickups was always a deterrant.
12-31-2004 09:08 PM
dubya30 What is the casting number on the heads of your 455? Your cam will definitely work but you may be limited by your stock heads to make some awesome torque...

Also, I recommend a larger capacity oil pan if you can get one that'll fit your car. You'll also require a pickup that'll fit that pan. Olds have oiling quirks that need to be addressed. I dropped a 455 Olds into my dad's 90 Olds custom cruiser station wagon, it bolted right up, I used the HEI distributer (with minor firewall mods) the only issue was the non smogger 455 only had 2 inlet/outlets on the fuel pump and the car had 3, and I had to get a water pump with three inlets/outlets for A/C. I also had to "fabricate" new power steering/alternator brackets as the olds has a taller deck height and is a bit wider than the small block and I required new belts, the thing looks like the stock 307 (painted the same color black as the stocker, hehehe).

HINT... get ahold of a camera and take pictures as you disassemble, that way you have a reference to put it all back together.
06-28-2003 10:39 PM
Re: No Way.....

Originally posted by crazy larry
You mean to tell me that an olds 455 will swap right out with a 350 sbc? why the heck are all these chevy guys running chevys insted of olds? oh yeah, chevys are cheap. i mean cheaper.
will They really swap out Cory? (not that you'd b.s. us or nothing.....) (my department)
edit. nevermind, that was an olds 350 not a sbc. sorry.

You had me going for a second. I was like, "What the heck was I thinking?" I thought I read the first post wrong, untill I went back and read it
06-28-2003 10:06 PM
crazy larry
No Way.....

You mean to tell me that an olds 455 will swap right out with a 350 sbc? why the heck are all these chevy guys running chevys insted of olds? oh yeah, chevys are cheap. i mean cheaper.
will They really swap out Cory? (not that you'd b.s. us or nothing.....) (my department)
edit. nevermind, that was an olds 350 not a sbc. sorry.
06-28-2003 10:01 PM
Barz51 The cam will work in your 455. All olds V8's of that vintage are basically the same size. Your 455 will drop right in place of the 350. Both engine mounts and bellhousing will bolt right up.

Good luck, keep us updated and welcome aboard.

06-28-2003 05:49 PM
slider in wa
Olds sites

I too , am trying to learn about Olds engines . I`m afraid i`m not much help on your questions, although, i have been told cams will interchange. I simply don`t know that for a fact. I have been into Chevy for ever. And i do beleive there is no better street carb than a 600 cfm Edelbrock( for most of us low buck guys) I do think the 600cfm is too small for your 455. I think the q-jet that came on the 455 was rated at 750 cfm stock. I can tell what i do know!!! Two things The headers will interchange between small and big blocks, and 2) you are now on the best site there is. Some one on here will answer up for ya. Mean time welcome to the board!!!
Slider in Wa.
06-28-2003 12:26 PM
olds 455

olds 455 build up

just found this site and it seems to be the best forum on the net!! i have a 1971 olds cutlass HC. when ya'll get time could you help me out? i'm running a 1970 olds 350 engine and have recently purchased a 1971 olds 455. i've been told a bunch of stuff in my 350 will work in this 455. my main questions are: 1)will the almost new Comp cam (224 duration with a 501 lift) work? 2) will the 1.6 magnum roller rocker kit with guide plates work? (i know the pushrods will need to be differant length) 3) there is an existing 2 barrel intake, i plan to install a edlebrock performer 4 barrel intake and use my 600cfm edlebrock carb with dual 2 1/2"exhaust, i have a 1700 rpm stall converter on a 350 transmission. last but not least..will my better quality distributor work?...any other "affordable' suggestions would be greatly apperciated. i'm old a skeerd so all i want is low end torque. by looking at the other posts, i will thank you for your responses ahead.

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