Are cathedral heads better?
It is interesting to note that the cathedral-port heads offered better low-speed power and produced peak torque lower than the LS3 heads (irrespective of cam choice).
What LS heads are Cathedral Port?
Cathedral port heads came on the original (Gen III) LS1, but were also used on the performance-oriented LS2 and LS6 versions. Cathedral port heads were bolted on literally millions of truck variants, which included (among others) the 4.8L LR4, the 5.3L LM7, and 6.0L LQ4.
Are 317 heads Cathedral Port?
LQ4 engines received the Generation III 317 V8 head in 2001. It has cathedral shaped intake ports and D shaped exhaust. Its large combustion chamber results in lower compression ratios….New GM LS 317 Head – 6.0L.
| Weight | 26.0 lbs |
|---|---|
| INTAKE PORT SHAPE | CATHEDRAL |
| VALVE SIZE (Int/Ex) | 2 in/1.55 in |
| MATERIAL | Aluminum |
| COMBUSTION CHAMBER VOLUME | 71cc |
Is an LS3 cathedral port?
“The LS3 style made both power and torque over what many would think would be a higher torque number combination [the cathedral port] because of the higher velocities and smaller port. This test shows that contrary to that line of thought, [LS3-style heads] basically annihilate the cathedral port.”
What year LS has cathedral port heads?
Can you put cathedral Port heads on LS3?
If you are looking to run one of our LS3 Fuelie intakes but have an LS engine with Cathedral port cylinder heads (i.e. LS1/LS6), then these adapters are the solution. They are manufactured from billet aluminum and include all the hardware and O-rings needed.
Are LM7 heads cathedral Port?
Are LS1 heads cathedral Port?
From a heads cam LS build to a moderate power adder car. Our Stage 1 ported GM cathedral port porting services are EXACTLY what your ride needs to put the power to the ground….What is it?
| LS1 cathedral style head | (110 & 112) |
|---|---|
| LS3 rectangle port | (310 & 312) |
| LS7 square port | (710 & 715) |
Are 862 heads cathedral Port?
The 862 heads are on the GM’s LM7 engines. The cylinder heads are designed with aluminum materials with a 61cc combustion chamber volume. They also come with a cathedral-shaped intake port and an oval exhaust port.
What are the features of lsxceleration XF1 Cathedral Port?
Features: 6 bolt… LSXceleration XF1 Cathedral Port 255cc/64cc 11° CNC Cylinder Heads – Stainless Intake, Stainless Exh, 0.660″ Lift, Titanium Retainers 15-161223-2 6-bolt Cathedral Port CNC Cylinder Head Pair w/ Billet Rocker Stands. Features: 6 bolt…
What are Cathedral port cylinder heads?
Cathedral port cylinder heads have been mistakenly dismissed by many in LS-series circles for being “old-tech.” However, their thin cross section allows for a high-velocity and smaller-volume runner design with excellent flow. For a street car, this design means excellent throttle response, torque and average power.
Why LME CNC ported LS1 243 heads?
With outstanding flow numbers and an efficient port shape, the LME CNC ported LS1 243s bring value and performance together. There are multiple methods of obtaining a set of LME CNC ported heads perfectly sculpted for your hot rod:
How much horsepower does a cathedral port engine have?
For road racing, a cathedral port is ideal, and has even proven to be quite capable in drag racing with an altered valve angle and larger runner sizes. The OEM design that started it all, the original Gen III cylinder head, helped produce 350 hp using 5.7 liters of displacement.