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Dish Pistons
Big Block Ford 520/545ci Forged PistonsStep Dish Top 4.390'' Bore (+.030'') 8/pkg
Technical Specs:
- Alloy: Premium High Ductility 2618
- Bore: 4.390' (+.030")
- Crankshaft Stroke: 4.300/4.500'
- Connecting Rod Length: 6.800/6.700"
- Deck Height: 10.320'
- Compression Height: 1.350'
- Pin Size: 0.990' x 2.750'
- Pin Location: Centered
- Step Dish Top: .210' 39cc
- Intake Valve Relief: 0.245' Depth / 2.450' Diameter
- Exhaust Valve Relief: N/A
- Top Landing Height: 0.328'
- Ring Grooves: 1/16' Top; 1/16' Middle; 3/16' Bottom
- Gram Weight: 627/141
- Compression Ratio 520: 9.8:1 w/72cc Heads; 9.6:1 w/75cc Heads; 8.8:1 w/88cc
- Compression Ratio 545: 10.2:1 w/72cc Heads; 10:1 w/75cc Heads; 9.2:1 w/88cc
- Designed for O.E. and Edelbrock style cylinder heads with 460 block.
- Can be used for 520ci with 4.300" stroke crank and 6.800" rod
- Can be used for 545ci with 4.500" stroke crank and 6.700" rod
United Engine and Machine Company are proud to introduce the Icon line of forged pistons for Big Block Ford engines. Icon brings the same quality and performance you've come to expect from other United Engine brands while adding a new lightweight forged design. No matter your high-performance application, there is an Icon piston for you.
Features:
- 4032 alloy contains 11% silicon for low expansion
- Dual forced pin oiling on most applications
- Lateral gas porting on higher compression ratios
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- Fully machined with deep valve pockets
- Second land accumulator grooves
- Top land mini groove technology
- Diamond finished skirts
- Triple wound spiral locks
- Spacer rings included in short compression heights that intersect the wrist pin bore
- Sold in Sets (except when noted as 1 piston per package)
Part TypePiston
Product LineUEM Pistons Icon Premium Forged Series Big Block Ford Pistons
BrandUNITED ENGINE MACHINE
Part CategoryPerformance Parts
Part FitmentSemi Universal
Vendor Part NumberIC854.030
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
