C3 Vette Registry - The Best Resource on the Net for C3 Vettes! C3 Vette
Forums -> C3 Engines
Not Logged In! Login or Register!  Users Online: 18 / Help 
Features  Find C3 Parts on ebay in only 2 or 3 clicks!  | Add YOUR C3 to the Registry

Supporting Vendors
CorvetteClothing.com
Volunteer Vette Products
VetteBookStore.com
Mid America Motorworks
Bair's Corvettes

C3 of the Month
None Current
Enter Yours Today!
Online C3 Show
13
C3s are Registered

Vanity Plates
82 TTOP
Craig&Janet82
Featured Links

Buy Now
The Corvette Dynasty (Hardcover)
The Corvette Dynasty (Hardcover)


Chevrolet Corvette Restoration Guide
Chevrolet Corvette Restoration Guide


Corvette Fifty Years (Hardcover)
Corvette Fifty Years (Hardcover)


Motor Trend - $5 for 12 issues.
Motor Trend
Only $5 for 12 issues.



| Hide Signatures and Profile Pics

 New Topic New Topic Post Reply Reply New Poll New Poll Search     Search Page [1]  
4/11/16 9:34am - Original Message: 'Ordering new 383 long block. A few questions'
DarinM
Standard Member
- Send Private Message


Caddo Mills, TX - USA

Vette(s):
1980 Black on Black 4speed 383 Stroker 17x9 rear, 17x8 front with 255-50R-17 Nitto tires OBX Stainless Steel sidepipes DeWitts radiator with dual electric fans

Joined: 9/15/2015
Posts: 38
Morning all, i plan to order a 383 long block this week and had a few questions i'm hoping someone can assist with.
First, the reason for a long block is i have a lot of good aftermarket parts on my stock L-48 which i want to re-use such as the intake, carb and corvette signature valve covers.

To help ease installation, i wanted to get a new oil pan and was wondering if the C3 uses the standard small block chevy oil pan or if there was a larger capacity one i could use that would fit the chassis.

Also, since i will have the motor out, there would be no better time to put a new clutch, pressure plate and throw out bearing in. Does anyone have recommendations outside of an OEM replacement ?

Thanks in advance


____________________________________

 Reply Reply  Quote Reply w/Quote
 
Support C3VR!
Suport our advertisers
4/11/16 11:41am - Reply: 'Re: Ordering new 383 long block. A few questions'
Adams' Apple Lifetime Member
Lifetime Member
Moderator
- Send Private Message


Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19457
First, you need to determine if the engine you are getting has a one-piece rear main seal, or the older style two piece. If it is a one piece seal, your original oil pan will not work anyway. If it has the two piece rear main seal, you can swap your oil pan with no problems. You will need a Corvette specific oil pan if you decide to change it, regardless.
Check to see what oil pump they will provide with the engine...you want a high volume pump,  not a high pressure pump. You'll also want to make sure the crankshaft will accept the clutch pilot bushing/bearing....some stroker cranks will not.
Clutch-wise, you can't go wrong with a stock type, LUK set up. Most parts houses either stock LUK brand, or can get it. Thumbs Up


____________________________________
Joel Adams
C3VR Lifetime Member #56    
My Link


(click for Texas-sized view!)
             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
 Reply Reply  Quote Reply w/Quote
4/11/16 11:55am - Reply: 'Re: Ordering new 383 long block. A few questions'
DarinM
Standard Member
- Send Private Message


Caddo Mills, TX - USA

Vette(s):
1980 Black on Black 4speed 383 Stroker 17x9 rear, 17x8 front with 255-50R-17 Nitto tires OBX Stainless Steel sidepipes DeWitts radiator with dual electric fans

Joined: 9/15/2015
Posts: 38
Thanks Joel !

i have an email out to the builder to find out about the 1 vs 2 piece oil seal. On the oil pump, I've confirmed it is built using a Melling high Volume pump. I will ask about the bushing, i had never thought about that. I would assume they would since one of the specs they ask for is auto or manual transmission. But i don't want to assume since that would be disastrous !


____________________________________

 Reply Reply  Quote Reply w/Quote
4/11/16 3:00pm - Reply: 'Re: Ordering new 383 long block. A few questions'
DarinM
Standard Member
- Send Private Message


Caddo Mills, TX - USA

Vette(s):
1980 Black on Black 4speed 383 Stroker 17x9 rear, 17x8 front with 255-50R-17 Nitto tires OBX Stainless Steel sidepipes DeWitts radiator with dual electric fans

Joined: 9/15/2015
Posts: 38
Confirmed it's available as 1 or 2 piece rear mains, i have to specify. Just waiting on the pilot bushing answer !

____________________________________

 Reply Reply  Quote Reply w/Quote
4/11/16 8:56pm - Reply: 'Re: Ordering new 383 long block. A few questions'
73shark
Standard Member
- Send Private Message


Overland Park, KS - USA

Vette(s):
1973 Orange Metallic Coupe (orig owner), L82, 4 spd (WR), PS, (A/C & PW (I installed from wrecked 73)), leather, AM/FM Stereo, ran with '65 FI unit earlier & will again some day.

Joined: 7/9/2003
Posts: 396
Might want to consider a needle bearing pilot bushing while you're in there.

____________________________________

1973 L-82 4 spd

 Reply Reply  Quote Reply w/Quote
4/11/16 10:19pm - Reply: 'Re: Ordering new 383 long block. A few questions'
F4Gary Gold Member
Gold Member
- Send Private Message


Grapevine, TX - USA

Vette(s):
1972 LT-1 convertible with factory air.

Joined: 8/26/2006
Posts: 869
73shark said: Might want to consider a needle bearing pilot bushing while you're in there.

I've heard that's not a good idea because they can come apart. 

I have no experience myself.



____________________________________
 Reply Reply  Quote Reply w/Quote
4/12/16 12:22am - Reply: 'Re: Ordering new 383 long block. A few questions'
73shark
Standard Member
- Send Private Message


Overland Park, KS - USA

Vette(s):
1973 Orange Metallic Coupe (orig owner), L82, 4 spd (WR), PS, (A/C & PW (I installed from wrecked 73)), leather, AM/FM Stereo, ran with '65 FI unit earlier & will again some day.

Joined: 7/9/2003
Posts: 396
Hadn't heard that but they use them in trucks.

____________________________________

1973 L-82 4 spd

 Reply Reply  Quote Reply w/Quote
4/12/16 12:07pm - Reply: 'Re: Ordering new 383 long block. A few questions'
Adams' Apple Lifetime Member
Lifetime Member
Moderator
- Send Private Message


Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19457
Needle bearing pilots are fine, when used with a trans that originally had a needle pilot. If used on older applications that were designed for a bushing, the bearing rollers will eat into the input shaft, since the pilot end of the shaft is not hardened properly to use on a steel bearing surface. A properly installed bronze pilot bushing will last just as long, and in some cases longer than a needle bearing pilot. The bearings don't have a lot of room for lubricating grease, and what they do have eventually turns to muck, leaving the bearing and shaft with NO lubrication.
Bronze pilot bushings are oil impregnated, so they continuously have some lubrication as they wear. The biggest issue with the bronze bushings is folks that insist on schmearing grease in them when they install them. Grease stops up the pores on the bushing, and keeps the oil from lubricating the bushing, leading to early, sometimes terminal failure. Folks...NEVER use ANY grease on a bronze pilot bushing...install it as it comes...your trans and clutch will thank you. Approve

____________________________________
Joel Adams
C3VR Lifetime Member #56    
My Link


(click for Texas-sized view!)
             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
 Reply Reply  Quote Reply w/Quote
4/12/16 1:33pm - Reply: 'Re: Ordering new 383 long block. A few questions'
73shark
Standard Member
- Send Private Message


Overland Park, KS - USA

Vette(s):
1973 Orange Metallic Coupe (orig owner), L82, 4 spd (WR), PS, (A/C & PW (I installed from wrecked 73)), leather, AM/FM Stereo, ran with '65 FI unit earlier & will again some day.

Joined: 7/9/2003
Posts: 396
 Learned something new today. I will pull out the needle bearing and get a new bronze bearing to put in in its place. Glad I hadn't installed the engine yet. Thanks for the info.  Hope it comes out easily.

____________________________________

1973 L-82 4 spd

 Reply Reply  Quote Reply w/Quote
4/12/16 6:50pm - Reply: 'Re: Ordering new 383 long block. A few questions'
DarinM
Standard Member
- Send Private Message


Caddo Mills, TX - USA

Vette(s):
1980 Black on Black 4speed 383 Stroker 17x9 rear, 17x8 front with 255-50R-17 Nitto tires OBX Stainless Steel sidepipes DeWitts radiator with dual electric fans

Joined: 9/15/2015
Posts: 38
Wow.. yes definately learned something new. I confirmed the crank is ready for a pilot bushing. So i think all my questions have been answered !!!

So time to place the order. 2-3 weeks lead time for the build. Then i figure i'll pull the motor and transmission in the mean time that way i can have a shop go through the transmission while it's out. Easier to confirm now rather than wait to take it out later.

Thanks for the WEALTH of knowledge !


____________________________________

 Reply Reply  Quote Reply w/Quote
4/12/16 9:47pm - Reply: 'Re: Ordering new 383 long block. A few questions'
Adams' Apple Lifetime Member
Lifetime Member
Moderator
- Send Private Message


Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19457
While we're on the subject of pilot bushings, they do have a "front" and "rear" side. The side that faces the trans is beveled, while the side that goes into the crankshaft is squared off, or flat. You want the beveled side facing the trans to make it easier to install the trans. This is the beveled side....
 


Also, anyone replacing their pilot bushings need to make SURE the bushings is made of bronze. There are lots of them out there that are more of a steel/composite bushing that are really bad for the trans input shaft. If a magnet will stick to the bushing, run away!! And of course, always test fit the bushing to the input shaft of the trans to make sure it fits properly.....it sux installing a bushing only to discover later that the trans won't fit into it....Angry


____________________________________
Joel Adams
C3VR Lifetime Member #56    
My Link


(click for Texas-sized view!)
             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
 Reply Reply  Quote Reply w/Quote
4/15/16 11:44am - Reply: 'Re: Ordering new 383 long block. A few questions'
snake97
Former Member
- Send Private Message


Metairie, LA - USA

Vette(s):
1979 Black, Oyster interior purchased in March 1980

Joined: 7/7/2013
Posts: 24
 Did almost what you are doing this past fall. I went with 1 piece rms. I purchased a 383 short block that came out of a mid to late 80's truck. You may need another dipstick. The 383 I have is on the passenger side and because of that the pan is different. The early Gen 1 small blocks have dipsticks on drivers side.  Purchased a stock type pan and had no problem. Every thing else interchanged on the small blocks, I opted for newer parts on my engine[ heads, intake, distrib, etc.] because the older parts had wear and in the 37+ years since the car was made, things have improved and been made better, even the metals in some parts.
 Reply Reply  Quote Reply w/Quote
 New Topic New Topic Post Reply Reply New Poll New Poll Search     Search Page [1]  
 Forums -> C3 Engines
(Moderator: Adam Wartell, Norsky, Adams' Apple)
 

 
Official C3 Vette Registry Community:
Home | Forums | Email | Who's Online | Clubs | Events | Member Stats

Other Official C3 Vette Registry Areas:
Members | Research | Shop | My Account | About C3VR
 

Corvette is a registered trademark of the General Motors Corporation(GM) & Chevrolet Motor Division. Vette Registries, LLC is responsible for all site content (except for member submitted content or where otherwise noted) and does not claim or imply that Chevrolet or GM is responsible for Official C3 Vette Registry content. Vette Registries, LLC is independent from GM and is not affiliated with, sponsored or supported by GM.  Copyright/trademark/sales mark infringements are not intended, or implied and are in fact used to support GM, Chevrolet and Corvette

Official C3 Vette Registry content is Copyright 2001-2017, Vette Registries, LLC. Content may not be reused without written consent. All Rights Reserved. NS

Corvette (Vette) Model Years on this site: 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 30