SBC 427 Stroker Build (w/ Dart SHP 400 Block)
#1
SBC 427 Stroker Build (w/ Dart SHP 400 Block)
I have a few questions about a SBC 427 stroker build, using a Dart SHP 400 block w/ a 4.0” stroke crank and H-Beam rods w/ cap bolts (possibly CompStar rods).
1. Will the Dart SHP block require additional clearancing for the 4.0” stroke and H-Beam rods? Also, which are the best rods for the clearance issues?
2. If I used a 3.875” stroke crank, does that crank require clearancing the block?
3. Will I need to use a small base-circle cam with a 4.0” stroke? I was hoping to reuse my current Comp solid-roller cam in this engine?
4. If I use a Dart Little M block (in place of the SHP), will Little M block require clearancing?
Thanks in advance for your answers.
1. Will the Dart SHP block require additional clearancing for the 4.0” stroke and H-Beam rods? Also, which are the best rods for the clearance issues?
2. If I used a 3.875” stroke crank, does that crank require clearancing the block?
3. Will I need to use a small base-circle cam with a 4.0” stroke? I was hoping to reuse my current Comp solid-roller cam in this engine?
4. If I use a Dart Little M block (in place of the SHP), will Little M block require clearancing?
Thanks in advance for your answers.
#2
Senior Member
RACING JUNKIE
Join Date: Jun 2003
Location: Hobbs, NM
Posts: 842
You might PM hink he really up on the Dart blocks. I think he can probably answer all you questions.
http://forums.racingjunk.com/profile...rofile&u=27868
http://forums.racingjunk.com/profile...rofile&u=27868
#4
Senior Member
EXPERT BUILDER
Join Date: Nov 2003
Location: NORTHEAST
Posts: 290
Re: SBC 427 Stroker Build (w/ Dart SHP 400 Block)
Originally Posted by TheEngineer
I have a few questions about a SBC 427 stroker build, using a Dart SHP 400 block w/ a 4.0” stroke crank and H-Beam rods w/ cap bolts (possibly CompStar rods).
1. Will the Dart SHP block require additional clearancing for the 4.0” stroke and H-Beam rods? Also, which are the best rods for the clearance issues?
2. If I used a 3.875” stroke crank, does that crank require clearancing the block?
3. Will I need to use a small base-circle cam with a 4.0” stroke? I was hoping to reuse my current Comp solid-roller cam in this engine?
4. If I use a Dart Little M block (in place of the SHP), will Little M block require clearancing?
Thanks in advance for your answers.
1. Will the Dart SHP block require additional clearancing for the 4.0” stroke and H-Beam rods? Also, which are the best rods for the clearance issues?
2. If I used a 3.875” stroke crank, does that crank require clearancing the block?
3. Will I need to use a small base-circle cam with a 4.0” stroke? I was hoping to reuse my current Comp solid-roller cam in this engine?
4. If I use a Dart Little M block (in place of the SHP), will Little M block require clearancing?
Thanks in advance for your answers.
And they make custom pistons every day
We are WD on Dart blocks all machined if interested give me a call.
#5
Senior Member
RACING JUNKIE
Join Date: Jan 2006
Location: La.
Posts: 2,890
X2, i built a 434" Lil "M" and had Bullit grind my cam to .870 base circle to clear the lunati promod rods, typically most base circles are .950 and will not clear a 4" stroke unless it's a raised cam blk.
JMO
Zip.
JMO
Zip.
#7
Originally Posted by cncmotorsports
We just finished a 427 using a SHP block, Comp Cams .685 lift roller, used Eagle CRS6000BST2000 Rods, had tons of room, cam was .940 base circle.
Any small base will clear.
Any small base will clear.
WD
#9
Originally Posted by cncmotorsports
Yes, Compstar rods will clear up to .660 lift using .900 base roller cam, use .875 base you will be fine for higher lift.
WD