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Mast: LS7 285cc 4.125″ Cylinder Heads [Camaro Corvette CTS V, LS7] Mast Motorsports

Name: Mast: LS7 285cc 4.125" Cylinder Heads [Camaro Corvette CTS V, LS7] Mast Motorsports Shop our online store today! Come visit us today
SKU: mode_344927633435
Price: 969.00 USD
Availability: InStock

Original price was: $ 3.876,00.Current price is: $ 969,00.

Intake Valves

Exhaust Valves

WEAPON-X +10% Port

Clear

SKU: mode_344927633435 Category: C6 Engine Tags: 1.600", 1204x, 1207x, 2.200", 285cc, 4.125, afr, beehive, black label, c5, c6, camaro, corvette, cts v, CTS-V2, ctsv2, dart, double, engine, ERL, high flow, high hp, high performance, hollow, hydraulic, inconel, ls1, ls2, ls3, ls6, LS7, ls9, LSA, lsx, lsxr, Mast, pac, ported, ported heads, RHS, rocker, roller, solid, springs, SS, stainless steel, stands, tfs, ti, titanium, trick flow, valve, valves, WCCH, z/28, z06, Z28, ZL1, zr1

Trying to improve on the best factory small-block cylinder heads ever built is no small endeavor. And yes, GM’s 12-degree LS7 castings are the best small-block heads of all time-regardless of engine make-trumping even the legendary Ford Cleveland heads. With a full CNC rubdown, monster 2.20/1.61-inch valves, and raised 270cc intake ports to go along with a flat 12-degree valve angle, factory LS7 heads flow 360 cfm out of the box. That’s big-block territory, and at a hair less than $3,000 for a set of fully assembled LS7 heads from your friendly GMPP distributor, they’re an exceptional value as well. So naturally, we were quite intrigued when Mast Motorsports announced it had developed its own 285cc LS7 castings that outflows the factory design.

Utilizes the Gen IV LS7 OEM rockers and accepts LS7 intake manifolds
Designed for any new Gen IV short-block with 4.125″ bore or larger
The 6-bolt design is compatible with GM LSX and RHS Blocks
Uses a 2.200″ intake valve and 1.600″ exhaust valve
Has a 285cc intake port
Has a deck thickness of .750″
70cc Combustion Chamber Standard

***Due to the thicker deck and higher valve cover rails some beauty covers are not compatible. When using Corvette (Y-Body) front accessories alternator may need to be clearanced.

Flow Data w/ 4.125″ Bore Plate
Lift	Intake	Exhaust
0.100	76	65
0.200	163	118
0.300	245	171
0.400	307	212
0.500	350	229
0.600	379	245
0.650	388	247
0.700	395	249

Intake Valves	2.200" Solid SS – Hyd Roller, 2.200" Hollow SS – Hyd Roller, 2.200" Solid Ti – Hyd Roller, 2.200" Solid SS – Solid Roller, 2.200" Solid Ti – Solid Roller
Exhaust Valves	1.600" Solid SS – Hyd Roller, 1.600" Solid Inconel – Hyd Roller, 1.600" Solid Ti – Hyd Roller, 1.600" Solid Inconel – Solid Roller, 1.600" Solid Ti – Solid Roller
WEAPON-X +10% Port	No, Yes

Professionally packed and fast shipping

Through our long-term relationship with UPS, FedEx, DHL and many other top global carriers we are able to offer various shipping options. Our warehouse staff is extremely skilled and will package your products according to our exact and precise specifications. Your items are carefully inspected and properly secured before shipping. We ship to thousands customers every day across multiple countries. This shows our commitment to be the largest online retailer on the planet. We have distribution centers and warehouses in Europe and the USA.

It is important to note that orders with more than one item are processed according to the specific item.

We will thoroughly inspect all items before sending. Most orders are shipped within 48 hours. The time to deliver varies from 3-7 days.

Returns

The stock is dynamic and we do not fully manage it because of the fact that many parties are involved, including our warehouse and factory. The actual stock can change at any moment. It's possible that the inventory could run out once your order has been processed.

Our policy runs for a period of 30 days. We cannot replace or refund your purchase after 30 days since the purchase.

The item cannot be in use and must be in the original packaging. It should also be in the original package.

Mast: LS7 285cc 4.125″ Cylinder Heads [Camaro Corvette CTS V, LS7] Mast Motorsports

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