Chevy Big
Block
Pro
3-D 24° / 26° - Dome Top 
• Developed for drag
racing. 2618 alloy.
•
Can be used with small nitrous kits. (Pin upgrade recommended for nitrous
applications.).
•
Ratios figured @ 9.800” deck height.
•
Standard 1/16” x 1/16” x 3/16” ring package.
•
Premium 8620 pins included.
•
Gasket volume = 9.7 - 10.9cc’s.
•
Top ring down = .250” - .300”.
•
Designed for 2.350” diameter intake valve and 1.900” exhaust
valve.
•
Valve relief depths - interior = .320”.
• Some items are non-stock parts, made to
order as necessary. See the shopping cart for availability.
Big
Block Chevy : Works with virtually ANY OPEN CHAMBER 24° -
26° head with little or NO hand blending
(except Edelbrock & GM Performance heads)
|
Part
#
|
Bore
|
Stroke
|
Rod
|
C.
D.
|
Wt
|
Pin
|
CC's |
Comp Ratio |
Purchase
Online
|
| 112cc |
118cc |
124cc |
12.3
12.4
12.4
12.5
12.6
12.7
13.5
13.6
13.8
14.0
14.1
|
11.6
11.6
11.7
11.7
11.8
11.9
12.7
12.7
12.9
13.1
13.7
|
10.9
10.9
11.0
11.0
11.1
11.2
11.9
12.0
12.2
12.4
12.5
|
12301
$802
|
4.270
4.280
4.290
4.310
4.320
4.350
4.500
4.530
4.560
4.600
4.625 |
4.000 |
6.135 |
1.645 |
- |
.990 |
46.0 |
|
12316
$802
|
4.270
4.280
4.290
4.310
4.320
4.350
4.500
4.530
4.560
4.600
4.625
|
4.000
|
6.385
|
1.395
|
-
|
.990
|
46.0
|
12.3
12.4
12.4
12.5
12.6
12.7
13.5
13.6
13.8
14.0
14.1
|
11.6
11.6
11.7
11.7
11.8
11.9
12.7
12.7
12.9
13.1
13.7
|
10.9
10.9
11.0
11.0
11.1
11.2
11.9
12.0
12.2
12.4
12.5
|
|
12336*
$802
|
4.270
4.280
4.290
4.310
4.320
4.350
4.500
4.530
4.560
4.600
4.625
|
4.250
|
6.385
|
1.270
|
-
|
.990
|
46.0
|
13.1
13.2
13.2
13.3
13.4
13.6
14.4
14.6
14.7
15.0
15.2
|
12.3
12.4
12.4
12.5
12.6
12.7
13.5
13.6
13.7
13.9
14.1
|
11.6
11.6
11.6
11.8
11.9
12.0
12.7
12.8
12.9
13.0
13.2
|
|
12348*
$802
|
4.270
4.280
4.290
4.310
4.320
4.350
4.500
4.530
4.560
4.600
4.625
|
4.000
|
6.535
|
1.245
|
-
|
.990
|
46.0
|
12.3
12.4
12.4
12.5
12.6
12.7
13.5
13.6
13.8
14.0
14.1
|
11.6
11.6
11.7
11.7
11.8
11.9
12.7
12.7
12.9
13.1
13.7
|
10.9
10.9
11.0
11.0
11.1
11.2
11.9
12.0
12.2
12.4
12.5
|
|
12359
$802
|
4.500
4.530
4.560
4.600
4.625
|
4.250
|
6.135
|
1.520
|
-
|
.990
|
42.0
|
13.7
13.8
14.0
14.2
14.3
|
|
12.1
12.3
12.4
12.6
12.7
|
|
12365*
$802
|
4.270
4.280
4.290
4.310
4.320
4.350
4.500
4.530
4.560
4.600
4.625
|
4.250
|
6.385
|
1.270
|
-
|
.990
|
42.0
|
12.5
12.5
12.6
12.7
12.7
12.9
13.7
13.8
14.0
14.2
14.3
|
12.7
12.8
11.8
12.0
12.0
12.1
12.8
12.9
13.1
13.3
13.5
|
11.1
11.1
11.2
11.3
11.3
11.4
12.1
12.3
12.4
12.6
12.7
|
|
12383*
$802
|
4.500
4.530
4.560
4.600
4.625
|
4.250
|
6.535
|
1.120
|
-
|
.990
|
42.0
|
13.7
13.8
14.0
14.2
14.3
|
|
12.1
12.3
12.4
12.6
12.7
|
|
* Includes
Oil ring support rails.
|
| |
|
Call 1-877-354-3812
to order your Parts Today!
We carry parts from scat, je, wiseco, ross, crower, callies, eagle,
cat, eagle
Most of our rotating assemblies include forged pistons
and 4340 steelcranks
|
