connecting rods for a 400 ci
Thread Starter
Racer
Joined: May 2000
Posts: 429
Likes: 0
From: chagrin falls,oh,usa
connecting rods for a 400 ci
i know the "factory" rods are short at 5.565" and 5.7 or 6" are preferred.
does someone make rods with the 400 rod journal and the longer length rod?
or do you have to get the rod journals on the crank turned down to the 350 size? won't this grind below any surface treatment on the rod journal? do you have to get the crank retreated?
does someone make rods with the 400 rod journal and the longer length rod?
or do you have to get the rod journals on the crank turned down to the 350 size? won't this grind below any surface treatment on the rod journal? do you have to get the crank retreated?
Thread Starter
Racer
Joined: May 2000
Posts: 429
Likes: 0
From: chagrin falls,oh,usa
Re: connecting rods for a 400 ci (johndezman)
good news! thanks for the info.
are the newer powdered metal or the old "pink strip" rods stronger?
is there a "stock chevy" 6" rod?
are the newer powdered metal or the old "pink strip" rods stronger?
is there a "stock chevy" 6" rod?
Race Director
Joined: Feb 1999
Posts: 12,772
Likes: 17
From: Indianapolis IN
Re: connecting rods for a 400 ci (johndezman)
http://www.flatlanderracing.com/crhbeamscat.html
I just did a quick search, I am sure there are others out there, but it makes your pistons cost a little more due to the 5.85 length.
I just did a quick search, I am sure there are others out there, but it makes your pistons cost a little more due to the 5.85 length.
Melting Slicks
Joined: Dec 2001
Posts: 2,025
Likes: 1
From: Billings MT
Re: connecting rods for a 400 ci (ld85)
I have the SCAT 6.0" H-Beams in my 406.
I just did the mock assembly today to check for clearances, i'm using a standard base circle cam, and no problems! Everything fits great. I did have to notch the oil pan rails to clear the cap screws, but that's a simple
fix. Look for a website soon with lots of pictures> :cool: :cheers:
I just did the mock assembly today to check for clearances, i'm using a standard base circle cam, and no problems! Everything fits great. I did have to notch the oil pan rails to clear the cap screws, but that's a simple
fix. Look for a website soon with lots of pictures> :cool: :cheers:
Melting Slicks
Joined: Dec 2000
Posts: 2,041
Likes: 0
From: Wichita, KS
Re: connecting rods for a 400 ci (johndezman)
My 406 has 5.7" GM "pink" rods. They have to be ground at the inside bolt area for cam clearance. It is not easy to measure but you need a minimum of .030 clearance from what I've been told.
The 5.85 rod is an aftermarket rod only. GM did not ever make a rod in this length for the small block.
If you don't intend to rev this engine too high you could use the 5.65 inch rods and skip all the grinding or aftermarket rod business. You'd be surprised how many people are using the standard 400 rod for serious racing.
The 5.85 rod is an aftermarket rod only. GM did not ever make a rod in this length for the small block.
If you don't intend to rev this engine too high you could use the 5.65 inch rods and skip all the grinding or aftermarket rod business. You'd be surprised how many people are using the standard 400 rod for serious racing.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
