'OK Kustom Headers'
Manufactured by 'Kustom Equipment'
Flint, Michigan
Owner..... Dave Lunkas
Years ....... 1966 thru 1980
Marketing Phrase > 'Bolt On A Tenth'
Famous for 'monster size' Primaries.
The '1st' Header Company to develop {1 7/8" Primary Pipes} for a Small-Block Chevrolet.
They were the 'Hot Ticket' for the 1970 NHRA Season, especially at the Indy Nationals,
as most of the 'Top' Modified Production cars switched to 'OK Kustom Headers'.
'Big Round Tubes' was their trick, to go along with a larger collector.
These Headers produced a 'wicked awesome' loud noise.
Were the popular choice for Corvette Racers, who liked the 'side-mount' style.
One issue with the 'Monster-sized' primary-pipes, they usually hit everything
in the Engine compartment.
They sure 'did not' fit like a Glove.
At one time, the only Header Company who fabricated a Header with;
* 1 7/8" > Primary Pipes
* 3 1/2" > Collector
Also, were the Header Company who produced units for General Motors. The
'OK Kustom Headers' were the units found in the trunk of the 1967 and 1968
Chevrolet Z-28 Camaro's with the 'DZ Option'.
What makes some of these GM units rare, is that they were 'stamped' with a
General Motors {Part #} on the flange.
As a final note for General Motors, 'OK Kustom Headers' also developed the Headers for the Cosworth Engine.