Wiseco Professional Chevy Big Block Piston Set of 8 – 1.395 in. CH, 45.00 CC
$2,156.07
Zip and humm are available over the phone: (07) 5619 7869
Bore 4.350 in · Compression height 1.395 in · Volume 45.00 cc · Set of 8 · wrist pins included
Fast AU-Wide Shipping
Returns within 30 days
12 month warranty
Will it fit your vehicle?
| Make | Model | Series | Years | Engine |
|---|---|---|---|---|
| Chev / GMC | — | — | — | — |
A dash means the listing does not narrow it down that far (for example no build dates are listed). Check with us if your vehicle was built near a model change.
Fitment listings are a guide. Not sure? Send us your rego or VIN and our team will check the part for your vehicle, before or after you order.
Description
Wiseco Professional Series forged piston sets for the Chevy Big Block, offered in 4 bore sizes: 4.280 in, 4.310 in, 4.320 in and 4.350 in. Every option shares the 1.395 in (35.43 mm) compression height and +45.00 cc crown volume. Wrist pins are included; rings are not.
What’s in the box
- 8 forged pistons
- 8 wrist pins (0.990 in / 25.15 mm diameter, 5115 steel, floating)
Rings are not part of this set, so order a ring set to suit the finished bore and the ring groove widths listed below: Wiseco piston ring sets.
Matching it to your Chevy Big Block
Wiseco list this set for a 4.000 in stroke and 6.385 in connecting rods. Compression height plus rod length plus half the stroke comes to 9.780 in (248.41 mm): compare that with your block’s deck height to see where the piston sits at top dead centre.
Crown volume is quoted as +45.00 cc: a positive figure means a dome that takes volume out of the combustion chamber. Work out the compression ratio for your combination (chamber volume, gasket bore and thickness, deck clearance) before you order.
The bore size is the finished bore these pistons are made for, so have the block measured and then bored and honed to suit, with piston-to-wall clearance set to Wiseco’s figure for the option you choose.
Material: 2618 aluminium, the low-silicon alloy usually chosen for boosted and high-load engines (it needs more piston-to-wall clearance than 4032).
Forging: slab-side design, with a coated skirt.
Options and part numbers
| Option | Wiseco part no. |
|---|---|
| 4.280 in | K0242A3 |
| 4.310 in | K0242A6 |
| 4.320 in | K0242A7 |
| 4.350 in | K0242A100 |
Specifications (all options)
| Compression Height | 1.395 in |
|---|---|
| Forging Type | Slab Side |
| Piston Material | 2618 |
| Piston Quantity | 8 |
| Piston Volume | 45.00 cc |
| Ring Set Included | No |
| Rod Length | 6.385 in |
| Skirt Coating | Yes |
| Stroke | 4.000 in |
| Wrist Pin Included | Yes |
| Wrist Pin Material | 5115 |
| Wrist Pin Outer Diameter | 0.990 in |
| Wrist Pin Style | Floating |
Boostline conrods listed for this engine family: Boostline Connecting Rod Kit | Chevy Big Block 6.385in. | ARP2000, Boostline Connecting Rod Kit | Chevy Big Block 6.135in. | ARP2000, Boostline Connecting Rod Kit | Chevy Big Block 6.535in. | ARP2000. This set is listed for 6.385 in rods, so match the length.
More: Big Block Chev forged pistons · all performance pistons · Wiseco
Shipped Australia-Wide
- Dispatched from within Australia with tracking.
- Available to order – usually ships in 2–3 weeks.
- Freight is quoted after you order – we confirm the cost to your address before dispatch.
- Delivery usually takes 2–10 business days after dispatch, depending on your location.
- Need your tracking number? Once your order has shipped, email sales@willysworkshop.com.au with your order number and we’ll send you the carrier and tracking details.
Freight question? Call us on (07) 5619 7869.
Additional information
| Make | Chev / GMC |
|---|---|
| Bore size | 4.280 in, 4.310 in, 4.320 in, 4.350 in |
Warranty: 12 months from Willys Workshop
Sold and warranted by Willys Workshop. Parts carry our 12-month warranty against defects, from the date of purchase or installation (whichever is later), subject to any manufacturer terms and fair wear and tear (Terms & Conditions, clause 7.1(b)). This is in addition to your rights under the Australian Consumer Law, which cannot be excluded.
- 30-day change-of-mind returns on eligible items: unused, uninstalled and in the original packaging, with a Return Authorisation from us first. A 15% restocking fee applies and return postage is at your cost.
- Special-order or imported-to-order items, electrical parts, ECUs and tuners once registered, connected or flashed, parts that have been fitted or modified, and clearance items can’t be returned for change of mind. Your rights for faulty goods still apply.
- Refunds are made to your original payment method within 14 business days of us receiving and inspecting the return.
Full details: Returns & Refund Policy and Terms & Conditions.
Warranty claims are coordinated through Willys Workshop. Email sales@willysworkshop.com.au or call Warana (07) 5619 7869 / Oxley (07) 3377 3421 with your order number and a description of the issue.
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