1969 427 Disappointing Dyno Numbers
Team Owner
Joined: Jul 2001
Posts: 182,997
Likes: 88
From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
Cannot find anything on the engine build sheet about the compression ratio.
For the pistons, it lists F/M L2300F30 forged, for $548.
Q-Jet jets .073
Hyd Lifters
CC Heads cut to 106.6/108.4
Camshaft Degree 106 LC
Resurface head cut for 103cc 1-.018/1-.027
Not sure what all that means, sorry for my ignorance.
Seems like I'm in a quandry. I like the mostly stock look (yes, the sidepipes are stock too, the expensive ones) but didn't realize the huge power loss by keeping it this way.
I didn't buy it to race but do enjoy the torque it has. What's a man to do? LOL
For the pistons, it lists F/M L2300F30 forged, for $548.
Q-Jet jets .073
Hyd Lifters
CC Heads cut to 106.6/108.4
Camshaft Degree 106 LC
Resurface head cut for 103cc 1-.018/1-.027
Not sure what all that means, sorry for my ignorance.
Seems like I'm in a quandry. I like the mostly stock look (yes, the sidepipes are stock too, the expensive ones) but didn't realize the huge power loss by keeping it this way.
I didn't buy it to race but do enjoy the torque it has. What's a man to do? LOL
This means that your compression was dropped which definetley cost you HP!!
Stock exhausts on those Vettes were very restrictive, especially if using the exhaust manifolds.. Going to headers alone would make a very noticeable difference!
Last edited by GrandSportC3; Mar 25, 2008 at 10:07 AM.
Drifting
Joined: Oct 2004
Posts: 1,496
Likes: 1
From: Lafayette Louisiana
