Members Login
Username 
 
Password 
    Remember Me  
Post Info TOPIC: New motor for the Chevelle


- The Craigslist Ninja -

Status: Offline
Posts: 1448
Date:
New motor for the Chevelle
Permalink  
 


I picked up some of these

And some of these

And a crank, bearings and rings

Had it all balanced.

Building a small block 383 for the Chevelle

Stay toned!



__________________
12.03 @ 113.5 mph
11's here I come


- The Craigslist Ninja -

Status: Offline
Posts: 1448
Date:
Permalink  
 

Does anyone local have a ring filer I can borrow?

 



__________________
12.03 @ 113.5 mph
11's here I come



- Mike -
Olalla, Wa


Status: Offline
Posts: 3489
Date:
Permalink  
 

Where are the huge domes on those Pistons?

__________________

http://www.u11racing.com

'66 SS Chevelle LQ4/4L80E

'65 Malibu SS (Best of 10.86 @ 125mph 1.51 60')

'65 GTO




- Jason -
Marysville, WA


Status: Offline
Posts: 1421
Date:
Permalink  
 

Ooooooo pretty! Love engine PORN.

__________________

69 Chevelle SS 
454 10.4:1,850 Mighty Demon Carb, TH 350, 10" TCI 3500, 12 Bolt 373's, 28x10.5 slicks 

Best Time at Pacific 6/20/2014, 11.96 @ 110 mph.

79 Malibu: 350 with Vortec heads, Performer Intake, Q-jet, TH350, 3.31 gears

Tow rig: 82 Chev C20 Scottsdale 454



- Beemer Brett - Redmond, WA

Status: Online
Posts: 5159
Date:
Permalink  
 

Cool Eric! Nice slugs!

__________________

1966 Chevelle, 1972 K20, 1967 GTO, 1955 210 Coupe, 1969 Chevelle



- Big George -

Status: Offline
Posts: 5692
Date:
Permalink  
 

most street 383s have reverse dome, so these 'flattops' will still generate a good CR

nice parts

__________________

George Kettler

SOLD 70 Elky 496/th400 3/.90
68 RatVette
68 Camaro Ragtop



- The Craigslist Ninja -

Status: Offline
Posts: 1448
Date:
Permalink  
 

66SSFan wrote:

Where are the huge domes on those Pistons?


 With flat tops and 70 cc RPM heads, I should be around mid 10 compression



__________________
12.03 @ 113.5 mph
11's here I come


- The Craigslist Ninja -

Status: Offline
Posts: 1448
Date:
Permalink  
 

Scrubbed the block today and got it ready for paint.



__________________
12.03 @ 113.5 mph
11's here I come


- Beemer Brett - Redmond, WA

Status: Online
Posts: 5159
Date:
Permalink  
 

Fun, I want to build a stroker for the 72 pickup.

__________________

1966 Chevelle, 1972 K20, 1967 GTO, 1955 210 Coupe, 1969 Chevelle



- The Craigslist Ninja -

Status: Offline
Posts: 1448
Date:
Permalink  
 

Started file fitting rings tonight.... Boy that takes a while.

I hope it goes faster when I get more experience with it.

The ring mfg says to use Bore x .0045 = gap for top and Bore x .0035 for second

so I rounded up

Top .019 second .015

Lots of articles on internet that get you second guessing.

Any comments greatly appreciated



__________________
12.03 @ 113.5 mph
11's here I come



- Mike -
Puyallup, WA


Status: Offline
Posts: 2526
Date:
Permalink  
 

Second ring always a bit more gap than first ring is what I have always read and done. More gap on second ring in real world tests doesn't really make much difference even if you go a little too far. More gap in the 2nd ring releases pressure between the rings and prevents ring flutter and breakage at high RPM.

As for ring filing, I love my ring filer...George borrowed it and he hated it. I have hand file fit rings before and that takes FOREVER!!!!

__________________

'67 Chevelle -- 383ci, Jerico DR4, S60 3.54

'70 Camaro -- In the works TT 6.0L, 4L80E, 12 bolt ??? ratio



- Big George -

Status: Offline
Posts: 5692
Date:
Permalink  
 

when doing my 496, I called the ring tech line, he said what Mikey said.

__________________

George Kettler

SOLD 70 Elky 496/th400 3/.90
68 RatVette
68 Camaro Ragtop



- The Craigslist Ninja -

Status: Offline
Posts: 1448
Date:
Permalink  
 

I painted the block and checked crank end play (.007) and main bearing clearances (2.7 thousandths).

Torqued the crank down

Thanks Mike and George for the input regarding ring gap.

 



__________________
12.03 @ 113.5 mph
11's here I come



- Mike -
Olalla, Wa


Status: Offline
Posts: 3489
Date:
Permalink  
 

Nice work!

__________________

http://www.u11racing.com

'66 SS Chevelle LQ4/4L80E

'65 Malibu SS (Best of 10.86 @ 125mph 1.51 60')

'65 GTO



- Beemer Brett - Redmond, WA

Status: Online
Posts: 5159
Date:
Permalink  
 

Very good looking!

__________________

1966 Chevelle, 1972 K20, 1967 GTO, 1955 210 Coupe, 1969 Chevelle




- Jason -
Marysville, WA


Status: Offline
Posts: 1421
Date:
Permalink  
 

Nice car Porn Eric!

__________________

69 Chevelle SS 
454 10.4:1,850 Mighty Demon Carb, TH 350, 10" TCI 3500, 12 Bolt 373's, 28x10.5 slicks 

Best Time at Pacific 6/20/2014, 11.96 @ 110 mph.

79 Malibu: 350 with Vortec heads, Performer Intake, Q-jet, TH350, 3.31 gears

Tow rig: 82 Chev C20 Scottsdale 454




- Mike -
Puyallup, WA


Status: Offline
Posts: 2526
Date:
Permalink  
 

Sweet. You're welcome.

__________________

'67 Chevelle -- 383ci, Jerico DR4, S60 3.54

'70 Camaro -- In the works TT 6.0L, 4L80E, 12 bolt ??? ratio



- Big George -

Status: Offline
Posts: 5692
Date:
Permalink  
 

you are welcome

does that block look familiar?


__________________

George Kettler

SOLD 70 Elky 496/th400 3/.90
68 RatVette
68 Camaro Ragtop



- MotorHead -

Status: Offline
Posts: 890
Date:
Permalink  
 

Nice dude.

__________________

SMALL BLOCK ALAN ASHWORTH

 

 



- The Craigslist Ninja -

Status: Offline
Posts: 1448
Date:
Permalink  
 

It's been a couple months since the last update.

I tried assembling the short block and the bearing clearances were larger than I wanted. I was looking for 2.5 thousandths.

They were south of 3 thousandths.

I had to take the block and rotating assembly to a shop, as I don't have the measuring equipment to figure out what was wrong.

Turns out the bearing clearances can be corrected by ordering + size bearings.

 

The problem:

Machine shop says the bores are out of round by 3 thousandths.

They say they can't correct without re boring.

This would mean buying new pistons and boring and hoping we were close on weight

or new block

They blame the block I brought them.

 

The block was a Summit Racing stroker crate block

I purchased off CL a couple years ago.

 

Ordering new pistons and boring will add $1000 to my already high build cost.

Am I missing any options? Any other ideas I have missed?

 

 

 

 

 



__________________
12.03 @ 113.5 mph
11's here I come
1 2 3 4  >  Last»  | Page of 4  sorted by
Quick Reply

Please log in to post quick replies.



Create your own FREE Forum
Report Abuse
Powered by ActiveBoard