Cylinder volume/bore and stroke???
01-30-2008, 02:09 AM
#1
TECH Regular
Thread Starter
iTrader: (7)
Join Date: Jun 2006
Location: Carson City, NV
Posts: 461
Likes: 0
Received 0 Likes
on
0 Posts
Cylinder volume/bore and stroke??? Ok for all you math geeks and LS1 fanatics out there maybe you can answer a few of my questions.
1. What is the stock Bore and Stroke of a 346 cu/in LS1 engine?
2. What is the bore and stroke of a 346 cu/in LS1 engine with a 224/228 114 LSA cam?
2. What is the GM rated compression ratio of the LS1 engine?
I know my new cam changed my compression due to the change in bore and stroke but I need to know by how much. I can figure out the compression ratio but I need to know the volume in any given cylinder with the piston at the bottom and divide that by the volume of any given cylinder with the piston at TDC. I also changed the heads to 243 LS6 castings from the stock 853 castings. I hope someone can get me some formulas
Thanks so much!
1. What is the stock Bore and Stroke of a 346 cu/in LS1 engine?
2. What is the bore and stroke of a 346 cu/in LS1 engine with a 224/228 114 LSA cam?
2. What is the GM rated compression ratio of the LS1 engine?
I know my new cam changed my compression due to the change in bore and stroke but I need to know by how much. I can figure out the compression ratio but I need to know the volume in any given cylinder with the piston at the bottom and divide that by the volume of any given cylinder with the piston at TDC. I also changed the heads to 243 LS6 castings from the stock 853 castings. I hope someone can get me some formulas
Thanks so much!
Last edited by Halloran; 01-30-2008 at 02:30 AM.
01-30-2008, 01:03 PM
#2
On The Tree
iTrader: (4)
Join Date: Aug 2006
Location: Central Iowa
Posts: 190
Likes: 0
Received 0 Likes
on
0 Posts
Bore: 3.898"
Stroke: 3.622"
LS1 SCR: 10.1:1
Replacing a camshaft will only change the dynamic compression ratio of the engine. It cannot change the bore, stroke, displacement, or static compression ratio. The LS6 heads, if unmilled and using the same thickness gasket, will bump the SCR up to 10.5:1.
Stroke: 3.622"
LS1 SCR: 10.1:1
Replacing a camshaft will only change the dynamic compression ratio of the engine. It cannot change the bore, stroke, displacement, or static compression ratio. The LS6 heads, if unmilled and using the same thickness gasket, will bump the SCR up to 10.5:1.
