This is an interesting tale:
Won't mention any names on this, but I HEARD of a famous East Coast 409 with a just as famous engine-builder who MAY HAVE HAD a trick or two performed on the engine.
(I say "heard" and "may have had" to avoid law suits). As for the trick, I don't know how widespread it was.
The story goes like this....... The '09 was sold to a gentleman who raced it under another Chevy Dealership's name for several years. The first time he did a complete engine teardown to replace bearings, rings, springs, re-do the heads, etc., there was a ittsy-bittsy problem. The rings were WAY too small for the pistons. After doing some measuring, it was discovered the
engine builder used an ingeneous way to maintain the legal c.i. displacement by overboring and destroking.
If everyone remembers, a protested engine size was determined by removing a sparkplug, pumping the cylinder full of fluid, and multiplying it by the number of cylinders. Full teardowns were
not done in those days.
One thing for certain, that '09 could sure twist up the Rs.
Won't mention any names on this, but I HEARD of a famous East Coast 409 with a just as famous engine-builder who MAY HAVE HAD a trick or two performed on the engine.
(I say "heard" and "may have had" to avoid law suits). As for the trick, I don't know how widespread it was.
The story goes like this....... The '09 was sold to a gentleman who raced it under another Chevy Dealership's name for several years. The first time he did a complete engine teardown to replace bearings, rings, springs, re-do the heads, etc., there was a ittsy-bittsy problem. The rings were WAY too small for the pistons. After doing some measuring, it was discovered the
engine builder used an ingeneous way to maintain the legal c.i. displacement by overboring and destroking.
If everyone remembers, a protested engine size was determined by removing a sparkplug, pumping the cylinder full of fluid, and multiplying it by the number of cylinders. Full teardowns were
not done in those days.
One thing for certain, that '09 could sure twist up the Rs.