Olds 455 oiling issues

Author: ozue

August undefined, 2024

WebJan 7, 2003 · The 455's Achilles' heel is a poor oil return system. The narrow passages from the stock heads do not allow oil in the valvetrain to return to the pan in an efficient …

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WebMany people try adding a high volume pump to address the Olds 455’s oiling issues but in stock form these engines have a very poor oil return from the heads to the pan. A high … WebMar 16, 2007 · Main reason I say this is a guy I knew with a old school Monte Carlo with a olds 455 in it, had super low oil pressure (20psi WOT), but he said because he had plenty of volume the motor was good. Because of this thinking I was thinking when I build a 2.4 to drill out the oil passages (bigger) and try to find a high volume pump. heiko neupert

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WebMay 6, 2024 · May 09, 2024 #2. Restricting oil flow above the mains increases hydraulic oil pressures to the crankshaft main and rods journals, which is especially helpful to “float” them and not just push fluid to the tp of the engine and heads. Olds Race Talk How did you do? Interesting tales Moderator:ROP Moderator. 171 … Trim Ford 460 oil seal for Olds 455? by OLDSmobility » Dec 04, 2024. 1 Replies … WebJun 17, 2010 · I have a 455 in my 84 cutlass, I took the timing cover off and it appears that I am not getting any oil on it. I have done some research and it appears that there is a plug … WebDec 28, 2016 · As far as oiling older blocks need a bigger pickup tube ,oil passage drilled out to 5/8 ,9/16 minimum. Booster plate on oil pump. Don't use the hi volume long gear set as it loads up cam bearing. Which is the next oil problem. Oil pump drive is too far forward of any support so it deflects at cam bearing. heiko neumann löbau

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WebRebuilt my Olds 455 jet boat motor. Complete with high volume oil pump, 10 quart pan, with 15w40 rotella and installed oil restricters in the cam feed lines only. now at high R.P.M.'s … WebJun 9, 2011 · Just had my Olds 455 rebuilt at a professional engin builder and it is blowing oil out the breathers on the valve covers and out the oil fill tube. I checked the compression and have near 150 lbs on all cylinders. It has a tunnel ram intake with 2 holleys. There is NO pvc on the engin now. Where do I start looking? What is 2nd 3rd etc. Thanks Sam hei konei ra koutouWebFeb 23, 2024 · Although small oil return passages make the 455 V8 a less-than-ideal option for continued high RPM use, these can be fixed with a larger oil pan and an oiling restriction system. Perhaps the best part about choosing the Oldsmobile 455 for your project is … heiko nollau

"WebMar 22, 2024 · Ensure cam bearing oiling holes are aligned with the block’s oiling holes. an OLDS 455 block is NOT grooved to allow 360 degree alignment. If your block is grooved, … " - Olds 455 oiling issues

Olds 455 oiling issues

How to Identify an Oldsmobile V-8 Engine • Muscle Car DIY

WebJun 9, 2011 · Just had my Olds 455 rebuilt at a professional engin builder and it is blowing oil out the breathers on the valve covers and out the oil fill tube. I checked the … WebFeb 23, 2024 · Although small oil return passages make the 455 V8 a less-than-ideal option for continued high RPM use, these can be fixed with a larger oil pan and an oiling …

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WebJan 6, 2002 · The starving for oil problem with the olds is largly due to the small oil return holes in the heads. the extra volume of oil pumped to the top at high rpm can not drain back to the pan fast enough. Extra volume oil pans will give you a margin of saftey to avoid sucking the pan dry. WebMay 22, 2015 · Oil on the top end is needed to lubricate the rocker fulcrum and cool the valve springs, this is especially important at high RPMs and certainly moreso with an aggressive …

WebJul 1, 2010 · I've had much success with Olds 455 in my cars (I have a 70' W-30 with a motor that I rebuilt back in 1979 and it still runs like new). I believe if I address the oiling and clearance issues on the BBO in the boat, it can be just as reliable. WebAug 16, 2024 · One of the oiling issues mostly affects the 1970 blocks due to smaller passages. This leads to less oil pressure at high RPM’s. Drilling out the oil passages is a way to solve this issue on the ’70 455 engine blocks. The more common issue is the oil pump housing wearing down.

WebPontiac 455 Engine Modifications: Modifying Oil Gallery Plugs AlchemistLair 15K views 10 years ago Building a Blown Pontiac Killer from a 185HP Mid-70s Smog Engine! Let's Tear it Down!!! Stay... WebFeb 28, 2009 · Cant say much about the old Olds except to remember that a 394 powered Starfire were a force to be reconded with back in the day. Never saw a broken one. Not once ever. The 455 now I have done a lot of these. Very good motor. Huge torque and power wth very little tweaking.

WebNov 23, 2010 · The oiling problem with Olds motors has to do with getting too much oil to the top end and too slow of a drain back. This causes the bottom end to caviate and starve. The fix is to put restrictors in the lifter galleys, which limits the amount of oil that goes up through the push rods.

WebJun 30, 2024 · 455 Olds. Issues. 455 Olds. Issues. Just picked up a new boat. 455 Olds 71 tahiti hull. Took out for a shakedown. Had oil coming up the dip stick noticed there's no o … heiko nick mckinseyWebAug 18, 2012 · Olds heads need some help in the "oil drainback" department. There are two drilled passages, one at each end of the head. The drilling is too small, and kinked in the middle. Oil drainback suffers. Re-drill the holes, from the top down to the kink, and from the bottom up to the kink. (It's not a single drilling from top to bottom!) hei konei ra lyricsWebSep 18, 2024 · Olds got a lot of help due to the 70's jetboat market. I find old jetboat parts all the time for my BB Olds. Whatever 455 you choose, set the rev limiter at 5500 RPM at it should last. I think my Olds 455 has around 300k miles on it … hei konei ra translationWebJan 6, 2011 · Whether your car has any known problems: Oil clearances are wide, on the order of .0035-.004". This is a necessity on this engine at current horsepower levels. … hei konei rāWebMar 31, 2012 · The issue with Olds oiling is that too much oil gets pumped to the heads via the lifters- These restrictors only restrict the oil going to the cam bearings, not the lifters. … heiko nevermannWebOct 24, 2012 · As I understand it this is an inherent issue with these motors, it just seems too low for my liking. 1976 455 fresh build with Edelbrock heads and intake, speed pro forged pistons, comp cams flat hydraulic. I inspected the cover throughly for wear and installed a high pressure kit (1/4" taller gears and that goofy spacer plate with dowel pins). heikon hapon phWeb455 engines through the years have some differences. compression pistons, not an issue if you are getting new ones anyhow. Later blocks, typically with an Fa casting ID have lost the boss where the clutch z-bar used to mount, which affects only manual trans applications. If you are using it in AT car, all 455 blocks are pretty heikong