What Is The Correct Size Of The Bolts For Edxhaust Maifold to Exhaust Pipe On A 1970 RR 383

• Dec 22, 2017

• #1

soundhd

Well-Known Member

Local time

2:04 AM

Joined

Oct 7, 2012

Messages

668

Reaction score

173

Location

Ann Arbor Michigan

Just wondering what the correct size of bolts are for connecting the stock exhaust manifolds to the exhaust pipes on a 1970 Roadrunner/383?

thanks

 

• Dec 22, 2017

• #2

M

mopar 3 B

Well-Known Member

Local time

1:04 AM

Joined

Aug 25, 2014

Messages

11,546

Reaction score

8,856

Location

Kingsville, MO

I believe 3/8" dia x 1-1/2"

 

• Dec 23, 2017

• #3

soundhd

Well-Known Member

Local time

2:04 AM

Joined

Oct 7, 2012

Messages

668

Reaction score

173

Location

Ann Arbor Michigan

mopar 3 B said:

I believe 3/8" dia x 1-1/2"

Click to expand...

3/8" by 1.5" long? Pretty short don't you think?

 

• Dec 23, 2017

• #4

Don Frelier

FBBO Gold Member

FBBO Gold Member

Local time

2:04 AM

Joined

Oct 11, 2016

Messages

8,560

Reaction score

13,008

Location

Ionia, NY

I think 1-1/2" is about right.