Anyone tried a 387, bore 4.125x3.622? Any draw backs?
#1
TECH Fanatic
Thread Starter
iTrader: (9)
Join Date: Apr 2012
Location: Georgetown, Tx
Posts: 1,053
Likes: 0
Received 0 Likes
on
0 Posts
Anyone tried a 387, bore 4.125x3.622? Any draw backs?
Recently I have been discussing a build using an LS1 sleeved block with a stock crank and a LS7 bore of 4.125. With this, I would run PRC 285 LS7 heads, and LS7 intake to maximize the flow allowed by this bore. My question is has anyone tried this and if so, what are the draw backs if any? I'm thinking this could be a really cool build, BUT that said, it's so unique I'd guess there's a reason it's not done frequently.
#4
11 Second Club
iTrader: (6)
Join Date: Feb 2005
Location: middle of nowhere, Kansas
Posts: 1,309
Likes: 0
Received 2 Likes
on
2 Posts
I was going to say you might have trouble finding a piston, but I see Wiseco makes a 4.125" bore piston for the 3.622 stroke. You'll need to match up the right rods to fit the pistons of course. Although, if I had a sleeved LS1, personally I would go with a 4" stroke and make a 427.
#5
Super Hulk Smash
iTrader: (7)
Those combos used to be more prevalent back like 10 years ago. They didn't make quite the torque of a 408 but would out power them due to the huge bore.
I wouldn't run a 285cc LS7 head on it. You don't have enough cubes. Or you'll have to spin it to 8k plus. The 265 LS7 heads would be a little better. Either way you are still looking at a 7500+ RPM engine which would be fun.
I wouldn't run a 285cc LS7 head on it. You don't have enough cubes. Or you'll have to spin it to 8k plus. The 265 LS7 heads would be a little better. Either way you are still looking at a 7500+ RPM engine which would be fun.
Trending Topics
#8
TECH Fanatic
Thread Starter
iTrader: (9)
Join Date: Apr 2012
Location: Georgetown, Tx
Posts: 1,053
Likes: 0
Received 0 Likes
on
0 Posts
I was going to say you might have trouble finding a piston, but I see Wiseco makes a 4.125" bore piston for the 3.622 stroke. You'll need to match up the right rods to fit the pistons of course. Although, if I had a sleeved LS1, personally I would go with a 4" stroke and make a 427.
#11
Super Hulk Smash
iTrader: (7)
Before the C6 came out, guys with C5s would use the C5R block, and because of displacement rules under certain racing situations, they'd use the 3.622" stroke for road racing.
SW had a 393 like that back around 02-03. 4.155" x 3.622" with a Darton sleeved block I believe.
SW had a 393 like that back around 02-03. 4.155" x 3.622" with a Darton sleeved block I believe.
#12
TECH Fanatic
Thread Starter
iTrader: (9)
Join Date: Apr 2012
Location: Georgetown, Tx
Posts: 1,053
Likes: 0
Received 0 Likes
on
0 Posts
Before the C6 came out, guys with C5s would use the C5R block, and because of displacement rules under certain racing situations, they'd use the 3.622" stroke for road racing.
SW had a 393 like that back around 02-03. 4.155" x 3.622" with a Darton sleeved block I believe.
SW had a 393 like that back around 02-03. 4.155" x 3.622" with a Darton sleeved block I believe.
#15
I am pretty sure he hit bottom 9's in that setup. I believe it spins to 9000+ rpms too. Obviously, not a cheap setup. Your average run of the mill stroker will be much cheaper.
Some info
http://www.z06vette.com/forums/f5/robzs-388-a-120415/
Listen to this thing for God's sake haha
#16
TECH Fanatic
Thread Starter
iTrader: (9)
Join Date: Apr 2012
Location: Georgetown, Tx
Posts: 1,053
Likes: 0
Received 0 Likes
on
0 Posts
High revving v-8s are just plain cool.
I am pretty sure he hit bottom 9's in that setup. I believe it spins to 9000+ rpms too. Obviously, not a cheap setup. Your average run of the mill stroker will be much cheaper.
Some info
http://www.z06vette.com/forums/f5/robzs-388-a-120415/
Listen to this thing for God's sake haha
http://www.youtube.com/watch?feature...&v=PaxE6dsfb_o
I am pretty sure he hit bottom 9's in that setup. I believe it spins to 9000+ rpms too. Obviously, not a cheap setup. Your average run of the mill stroker will be much cheaper.
Some info
http://www.z06vette.com/forums/f5/robzs-388-a-120415/
Listen to this thing for God's sake haha
http://www.youtube.com/watch?feature...&v=PaxE6dsfb_o