Engine Blueprint Specifications: 1970 Pontiac 330 HP 400 V8 Firebird
PONT-70
Issued: 4/8/1970
Last Revised:
Revisions: None
Engine Family: General Motors, Pont V8 Late
Advertised Comp Ratio: 10.50:1
Induction: 1-4 Bbl
Engine Type: V8
Accepted Replacement Pistons for Stock Eliminator
Effective 1/9/2023
Specs:
Comp Hgt-1.695"
Pin Dia-0.980"
Rings-5/64, 5/64, 3/16
Distance to Top Ring-0.320"
Piston Min Weight-551g
Accepted Replacement Oil Pans for Stock Eliminator
Engine Group - Pont V8 Late
Effective 5/10/2022
Accepted Replacement Blocks
Accepted Replacement Connecting Rods for Stock or S/S
Effective 8/23/2023
Specs:
C/C Length- 6.625"
Min Weight- 760g
Journal Dia- 2.249"
Big End Dia- 2.375"
Pin Dia- 0.980"
Manufacturer |
Part Number |
C/C Length |
Wgt. |
Pin Dia. |
|
|
Carrillo |
C427-76635S |
6.625" |
834g |
0.990" |
Pontiac |
|
Carrillo |
C427-A76635H |
6.625" |
787g |
0.990" |
Pontiac **Discontinued** |
|
Carrillo |
P-455-SS |
6.631" |
760g |
NA |
SUPER STOCK ONLY |
|
Childs & Albert |
389-12 |
6.625" |
NA |
0.947" |
Pontiac |
|
Crower |
F91059 |
6.625" |
NA |
0.981" |
Pontiac |
|
Crower |
ML93015B5 |
6.624" |
773g |
NA |
SUPER STOCK ONLY |
|
Crower |
SP93419 |
6.625" |
830g |
0.947" |
Pontiac |
|
Eagle |
CRS-6625P3D |
6.625" |
760g |
0.947" |
Pontiac |
|
Eagle |
CRS-6635P |
6.635" |
810g |
0.990" |
BB Chev |
|
Manley |
14168 |
6.635" |
830g |
0.990" |
BB Chev |
|
Oliver |
ORPPONT6625 |
6.625" |
NA |
0.981" |
Pontiac |
|
Oliver |
P6225PONT |
6.625" |
790g |
0.980" |
Pontiac |
|
Oliver |
P6625PONTFR8 |
6.625" |
819g |
0.980" |
Pontiac |
|