Miscellaneous Upgrades

• Stock Exhaust
• Dual Snorkel Air Cleaner
• Garage Floor

Why Stock?

 
It’s a long story, but the short version is,
To reduce under-hood noise.

(Remember that my RPMs are limited to 5.500.)

Installed by Ron’s Muffler Shop.
They were very professional!

Previously I had Edlebrock headers (1988) and later, Blackjack headers (≈2010?)

Above are the Blackjack headers (installed ≈2010) I replaced. These had ball/socket connections to the exhaust.

At left are the first set of headers (≈1988) = Edelbrock. Note the flat-flange design.

From this (Before):

To this (After):

To go along with my efforts to reduce under-hood noise, look somewhat stock, and have something different, I started looking at enclosed air cleaners.

The original 1967 396-325hp ands 396-350hp engines used a single-snorkel air cleaner (shown at right-above). The snorkel, with it’s small opening, looks a bit restrictive.

The 396-375 had the open element. My open element (above-left, “Before”) was a relatively cheap copy and was showing some age.

Dual Snorkel air cleaners (above-right) were used on early ’70s Corvettes and Camaros. They are much less restrictive. The breather also changed from a standalone unit stuck in the valve cover to an elbow and hose connected to filtered air ((right-below).

Stock 1967 396-325hp Air Cleaner