Will the stock oil pump work for my 383 lt1?
Thread Starter
Staging Lane
Joined: Dec 2016
Posts: 98
Likes: 0
From: Minnesota
Will the stock oil pump work for my 383 lt1? so i got my 383 back and was wondering if i can still use my stock oil pump. My machine shop installed a windage tray as well in my oil pan.. dont know if it'll help much but it was installed. was also wondering if i can reuse my bolts that hook up my oil pump, etc under the oil pan.
thanks
p.s. i dont know to much about whats going on in that curtain area.
thanks
p.s. i dont know to much about whats going on in that curtain area.
TECH Veteran
Joined: Apr 2008
Posts: 4,985
Likes: 112
yes you can use a stock oil pump in a 383....BUT if the motor was machined with wider than stock bearing clearances than a HV pump would be used in that application. Many people do swap the spring out of a stock oil pump to the higher pressure one. IIRC the GM higher pressure spring is pink and the stock one is white
Your builder should tell you if he used standard or wider bearing clearances
You absolutely want to use a windage tray
You can use the stock windage tray with a 383. You just need to space it 1/8" further away (pic) by using washers between the tray and the nut on the long main studs it attaches to
If using the stock oil pan just put it on with the engine on a stand and while someone turns the motor over with a socket/wrench listen with your ear against the pan for any scraping while the person rotates the motor. I use the stock pan and windage tray on my 383. I did need to "slightly" push out the bottom front of pan to clear #2 rod bolt. It barely made a scrape on the pan. I just used a folded towel and put pan on it and used the big end of a baseball bat to push out from inside of pan. Very simple as it just needed a hair of a push from the bat to clearance the pan
on the oil pump, get a steel drive shaft from ARP or Miloden vs re-using the stock one with the plastic (read it will break) collar. Those oil pump drive shafts are around $12 from places like Summit
Your builder should tell you if he used standard or wider bearing clearances
You absolutely want to use a windage tray
You can use the stock windage tray with a 383. You just need to space it 1/8" further away (pic) by using washers between the tray and the nut on the long main studs it attaches to
If using the stock oil pan just put it on with the engine on a stand and while someone turns the motor over with a socket/wrench listen with your ear against the pan for any scraping while the person rotates the motor. I use the stock pan and windage tray on my 383. I did need to "slightly" push out the bottom front of pan to clear #2 rod bolt. It barely made a scrape on the pan. I just used a folded towel and put pan on it and used the big end of a baseball bat to push out from inside of pan. Very simple as it just needed a hair of a push from the bat to clearance the pan
on the oil pump, get a steel drive shaft from ARP or Miloden vs re-using the stock one with the plastic (read it will break) collar. Those oil pump drive shafts are around $12 from places like Summit
Last edited by BALLSS; Feb 21, 2018 at 07:50 PM.
Thread Starter
Staging Lane
Joined: Dec 2016
Posts: 98
Likes: 0
From: Minnesota
yes you can use a stock oil pump in a 383....BUT if the motor was machined with wider than stock bearing clearances than a HV pump would be used in that application. Many people do swap the spring out of a stock oil pump to the higher pressure one. IIRC the GM higher pressure spring is pink and the stock one is white
Your builder should tell you if he used standard or wider bearing clearances
You absolutely want to use a windage tray
You can use the stock windage tray with a 383. You just need to space it 1/8" further away (pic) by using washers between the tray and the nut on the long main studs it attaches to
If using the stock oil pan just put it on with the engine on a stand and while someone turns the motor over with a socket/wrench listen with your ear against the pan for any scraping while the person rotates the motor. I use the stock pan and windage tray on my 383. I did need to "slightly" push out the bottom front of pan to clear #2 rod bolt. It barely made a scrape on the pan. I just used a folded towel and put pan on it and used the big end of a baseball bat to push out from inside of pan. Very simple as it just needed a hair of a push from the bat to clearance the pan
on the oil pump, get a steel drive shaft from ARP or Miloden vs re-using the stock one with the plastic (read it will break) collar. Those oil pump drive shafts are around $12 from places like Summit
Your builder should tell you if he used standard or wider bearing clearances
You absolutely want to use a windage tray
You can use the stock windage tray with a 383. You just need to space it 1/8" further away (pic) by using washers between the tray and the nut on the long main studs it attaches to
If using the stock oil pan just put it on with the engine on a stand and while someone turns the motor over with a socket/wrench listen with your ear against the pan for any scraping while the person rotates the motor. I use the stock pan and windage tray on my 383. I did need to "slightly" push out the bottom front of pan to clear #2 rod bolt. It barely made a scrape on the pan. I just used a folded towel and put pan on it and used the big end of a baseball bat to push out from inside of pan. Very simple as it just needed a hair of a push from the bat to clearance the pan
on the oil pump, get a steel drive shaft from ARP or Miloden vs re-using the stock one with the plastic (read it will break) collar. Those oil pump drive shafts are around $12 from places like Summit
