Off the shelf pistons for a 3.75" stroke
08-04-2021 | 07:59 PM
#21
Thread Starter
On The Tree
Joined: Sep 2008
Posts: 180
Likes: 30
From: Dayton, OH
Interesting discussion. I learned a lot. Thanks!
I came back to post that a 4" stroke might be the better way, especially since there are so many 'standard' parts for that configuration.
My concern was not about sleeve length though, it was about matching the displacement to the supercharger, that it might match up better to a smaller (than 427) displacement. It is a Ti with a billet impeller that is a little more aggressive than the cast impeller from Vortech and has H\D ceramic bearings.
As far as stroke and sleeve length, I found this posted by Steve from RED.
"The LS2 and LS6 blocks have a sleeve length of 5.400". The LS7 has a sleeve length (to the tang) of 5.900".
I had Darton lengthen all the wet and dry sleeves to 5.800". The original designs were 5.675" which were good for 4" stroke or 4.125" stroke using a short skirt piston design. The 5.800" sleeve will accomodate(sp) 4.250" strokes."
Handy link to thread
The sleeves I am getting put in are 5.8" and 4.110 ID.
I came back to post that a 4" stroke might be the better way, especially since there are so many 'standard' parts for that configuration.
My concern was not about sleeve length though, it was about matching the displacement to the supercharger, that it might match up better to a smaller (than 427) displacement. It is a Ti with a billet impeller that is a little more aggressive than the cast impeller from Vortech and has H\D ceramic bearings.
As far as stroke and sleeve length, I found this posted by Steve from RED.
"The LS2 and LS6 blocks have a sleeve length of 5.400". The LS7 has a sleeve length (to the tang) of 5.900".
I had Darton lengthen all the wet and dry sleeves to 5.800". The original designs were 5.675" which were good for 4" stroke or 4.125" stroke using a short skirt piston design. The 5.800" sleeve will accomodate(sp) 4.250" strokes."
Handy link to thread
The sleeves I am getting put in are 5.8" and 4.110 ID.
Last edited by SteveJewels; 08-05-2021 at 04:37 AM.
08-05-2021 | 04:01 PM
#22
LS1Tech Sponsor
Joined: Jan 2008
Posts: 2,048
Likes: 1,257
From: Ohio, Georgia, Nevada, Texas
Interesting discussion. I learned a lot. Thanks!
I came back to post that a 4" stroke might be the better way, especially since there are so many 'standard' parts for that configuration.
My concern was not about sleeve length though, it was about matching the displacement to the supercharger, that it might match up better to a smaller (than 427) displacement. It is a Ti with a billet impeller that is a little more aggressive than the cast impeller from Vortech and has H\D ceramic bearings.
As far as stroke and sleeve length, I found this posted by Steve from RED.
"The LS2 and LS6 blocks have a sleeve length of 5.400". The LS7 has a sleeve length (to the tang) of 5.900".
I had Darton lengthen all the wet and dry sleeves to 5.800". The original designs were 5.675" which were good for 4" stroke or 4.125" stroke using a short skirt piston design. The 5.800" sleeve will accomodate(sp) 4.250" strokes."
Handy link to thread
The sleeves I am getting put in are 5.8" and 4.110 ID.
I came back to post that a 4" stroke might be the better way, especially since there are so many 'standard' parts for that configuration.
My concern was not about sleeve length though, it was about matching the displacement to the supercharger, that it might match up better to a smaller (than 427) displacement. It is a Ti with a billet impeller that is a little more aggressive than the cast impeller from Vortech and has H\D ceramic bearings.
As far as stroke and sleeve length, I found this posted by Steve from RED.
"The LS2 and LS6 blocks have a sleeve length of 5.400". The LS7 has a sleeve length (to the tang) of 5.900".
I had Darton lengthen all the wet and dry sleeves to 5.800". The original designs were 5.675" which were good for 4" stroke or 4.125" stroke using a short skirt piston design. The 5.800" sleeve will accomodate(sp) 4.250" strokes."
Handy link to thread
The sleeves I am getting put in are 5.8" and 4.110 ID.
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