393 cid stroker questions
07-06-2008, 06:33 AM
#1
TECH Apprentice
Thread Starter
iTrader: (30)
Join Date: Apr 2007
Location: milton florida
Posts: 321
Likes: 0
Received 0 Likes
on
0 Posts
393 cid stroker questions OK i am going to rebuild my bottom end and i picked up a callies 4.100 crank for cheap(TUrNED 20/20) i am plaining on building a 393stroker..any hints or tips..i plain on using the same heads(243's) with a mild port job and a pretty healthy cam( somewhere in the 250/260 range..id like to keep the CR around 11.1/11.5.1 and be able to run on pump gas..i am also plaining on spraying this thing with a 200 shot of NOS..any do or donts..id like to make 500rwhp & around 700rwhp on the bottle
PLEASE DO NOT POST IF YOU HAVE NEVER HAD OR BUILT A 393CID..
PLEASE DO NOT POST IF YOU HAVE NEVER HAD OR BUILT A 393CID..
07-06-2008, 10:29 AM
#4
What I said was do some research and help yourself a bit. What does having a longer stroke do? It sounds like you want to build this in your garage so you need to do some reading and research. We dont recommned FI on a 4.100 crank in an OEM sleeved block. Others will say its ok, so its your job right now to research that debate and find out why, its valuable knowlegde that you want to read.
07-06-2008, 11:29 AM
#5
TECH Enthusiast
iTrader: (9)
Join Date: Dec 2003
Location: Edmond,OK
Posts: 563
Likes: 0
Received 0 Likes
on
0 Posts
you'll need to check out which rod lenght is the best
I have a 4.125 stroke and I went with a 6.250 rod, you'll also have to do some clearencing for the rod bolts on the block.
I have a 4.125 stroke and I went with a 6.250 rod, you'll also have to do some clearencing for the rod bolts on the block.
07-06-2008, 01:45 PM
#6
TECH Senior Member
Definately not ackyard building project. 393>396 are the most tolerance unfriendly builds and need to be done by a professional that know all the tricks to have a shot at a reliable setup.
Although it shows big cubes it will make HP but will not achieve the trq numbers most of us like to see on strokers.
My advice, either a 6.0 iron block, but a LS7 would be my choice.
Although it shows big cubes it will make HP but will not achieve the trq numbers most of us like to see on strokers.
My advice, either a 6.0 iron block, but a LS7 would be my choice.
Trending Topics
07-08-2008, 05:43 PM
#8
TECH Enthusiast
iTrader: (9)
Join Date: Dec 2003
Location: Edmond,OK
Posts: 563
Likes: 0
Received 0 Likes
on
0 Posts
I built my 396 along with a couple of my friends who are ASE GM master techs.
my car made 491rwhp and 450 rwtq
the torque curve is as flat as a table. Torque is instant and stays all the way!
the motor is a 12.0:1 CR
cam is a 246/252
heads are TSP 2.5 with 2.02/ 1.60 vavles
Fast 92/92
Kooks 1 7/8 headers and TDs
numbers are through a locked triple disc 3600 Vig
and a Moser 12 bolt with 3.73's
my car made 491rwhp and 450 rwtq
the torque curve is as flat as a table. Torque is instant and stays all the way!
the motor is a 12.0:1 CR
cam is a 246/252
heads are TSP 2.5 with 2.02/ 1.60 vavles
Fast 92/92
Kooks 1 7/8 headers and TDs
numbers are through a locked triple disc 3600 Vig
and a Moser 12 bolt with 3.73's
