383 stroker or not?
Melting Slicks
Joined: Sep 1999
Posts: 3,155
Likes: 8
From: Hendersonville TN
Have you run them side by side?? It could be and not really be tuned right and is low on power. Did he buy the car that way and was told it was a 383?? Are there receipts for the motor work or dyno sheets???
Large Impressive Member
Joined: Jul 2003
Posts: 65,811
Likes: 71
From: Good health is merely the slowest possible rate at which one can die
St. Jude Donor '04-'05-'06-'07
Pull the oil pan off and see if any clearancing has been done. I had to clearance the inside pan rail area of the block as well as the the bottom of the cylinders for rod clearance. I'm using a 3.80" stroke crank which is .050" longer than a 383 crank. I'm also using 6" H-beam rods. I'm relatively sure though that some clearancing is required for any 383.
Large Impressive Member
Joined: Jul 2003
Posts: 65,811
Likes: 71
From: Good health is merely the slowest possible rate at which one can die
St. Jude Donor '04-'05-'06-'07
Originally Posted by Rich & Lisa_84
I only had one spot to clearence when I built mine and I only had to take about .010 off at that spot.
You may not be able to see it that easily.
You may not be able to see it that easily.
Le Mans Master
Joined: Jul 2001
Posts: 8,183
Likes: 3
From: Santa Maria, CA
Sometimes machinists will stamp the stroke of a particular crank on the first counter-weight.
A possible clue might be an aftermarket oil pan or visible denting or notch work done on the pan.
A possible clue might be an aftermarket oil pan or visible denting or notch work done on the pan.
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Amen 
Instructor
Joined: Apr 2006
Posts: 194
Likes: 0
From: edmonton alberta
its easy
Originally Posted by all show and more go
my friend swears his 1990 corvette is a 383 stroker but it doesent feel much faster. So is there a visual way to tell or maybe sound is different.