Buick 1985 350 105HP Specs
Buick 1985 350 105HP engine specs: 350 ci (5.7L), 8-cylinder, 4.057" bore x 3.385" stroke, 23.5:1 compression.
Dimensions
| Displacement | 350 ci / 5.7 L |
|---|
| Bore | 4.057" |
|---|
| Stroke | 3.385" |
|---|
| Cylinders | 8 |
|---|
| Configuration | V8 |
|---|
| Compression ratio | 23.5:1 |
|---|
| Rod length | 5.885" |
|---|
| Rod ratio | 1.739 |
|---|
| Bore/stroke ratio | 1.199 |
|---|
| Piston deck clearance | 0.046" |
|---|
Construction
| Block material | cast iron |
|---|
| Head material | cast iron |
|---|
| Valvetrain | OHV |
|---|
| Fuel type | gas |
|---|
| Advertised HP | 105 hp |
|---|
| Years | 1985 |
|---|
What these numbers mean
| Bore/stroke character | 1.199 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves |
|---|
| Mean piston speed at 6,000 RPM | 3,385 ft/min — conservative for a street engine |
|---|
| Rod ratio | 1.739 — moderate — the range most production V8s fall in |
|---|
| Displacement per cylinder | 43.8 ci |
|---|
| Static compression | 23.5:1 — high enough that pump premium or better is normally required |
|---|
Cylinder head
| Intake valve diameter | 1.88" |
|---|
| Exhaust valve diameter | 1.567" |
|---|
| Chamber volume | 60.58 cc |
|---|
| Rocker ratio | 1.6:1 |
|---|
| Lifter type | hydraulic |
|---|
Run the numbers for this engine
Each link opens the calculator with this engine's specs already filled in.
Similar engines
Source: NHRA blueprints — nhra.net blueprints
← All Buick 350ci engines