The Chevy 350 has a hydraulic camshaft and hydraulic lifters. The intake and exhaust valves have a duration of 218 seconds a 0.5 rpm each. Both have a valve lift of 0.457 inches and a total duration of 268 seconds .
How hard is it to put a cam in a 350?
Changing the camshaft on a small block Chevrolet 350 engine is a project that requires methodical disassembly, inspection and reassembly of many parts on the engine. Since the camshaft and lifters are internal components, several external parts will need to be removed first in order to complete this task.
What is the cam lift on a stock 350?
The Chevy 350 has a hydraulic camshaft and hydraulic lifters. The intake and exhaust valves have a duration of 218 seconds a 0.5 rpm each. Both have a valve lift of 0.457 inches and a total duration of 268 seconds .
What stage cam should I get?
Short duration cams are good for low speed torque and throttle response while long duration cams are best or high revving engines that need to make lots of top end power. ... A cam with a duration of 240 degrees of higher will typically produce the most power from 3,500 to 7,000 rpm.
How much horsepower does a Stage 3 cam add?
Summit 8710 Stage Three Cam: 549 HP and 492 LB-FT .
How much horsepower does a cam add to a 350?
It holds the valves, valve springs and the intake and exhaust runners. A new cylinder head comes with bigger valves, intake and exhaust runners with smoother sides for better airflow. It should be matched to a new camshaft. This fix will immediately add 100 horsepower .
What is a Stage 3 cam?
The Stage 3 cam is designed to work with some larger valves, port work, and upgraded carburetor or EFI system . This cam starts moving the power band a little higher in the RPM range (2500-6000). This is the biggest cam we recommend for a street application.
Can you degree a cam with the heads on?
You can make your own pointer and piston stop, so that leaves investing in the dial indicator and base, since degree wheels are so inexpensive as to be inconsequential. If nothing else, a degree wheel looks good in your toolbox. ... For degreeing with the heads on, you can make a piston stop out of an old spark plug .
How much does a cam install cost?
Around here the shops charge around $2500 for parts and labor for an LS3 cam install.
What keeps a camshaft in place?
Flat tappet lifters spin in their bores and keep the cam in place.
What gives a cam a rough idle?
The reason race cars have that rough idle is because the engines used are designed for high-rpm operation . ... The reason you want to stay away from an increase in lobe lift is because of the changes youll need to make to a stock engine if the cam has more than approximately . 460 inch lift.
What Is a Stage 2 cam?
Stage 2: this is typically referred to an engine with a performance cam upgrade as well as the other components within a Stage 1 combination . ... It includes comprehensive headwork and aggressive cam. Requires larger throttle body & injectors as well as additional supportive mods. Would be considered fuel & tune sensitive.
How much horsepower does a Thumpr cam add?
The Thumpr made the highest peak torque, the highest average torque, the highest overall average power, the best average numbers between 2,500 and 4,500 rpm, and the best numbers from 4,500 to 6,500 rpm. It made 396 hp at 5,900 and 418 lb-ft at 4,200 with the Vortec heads.
Does adding a cam increase horsepower?
Performance cams increase the duration and timing of the valve openings during the engine stroke , increasing horsepower and making your car accelerate more quickly. You’ll idle slightly rougher with a performance cam, but get a throaty rumble that’s desirable for some gearheads, depending on your vehicle.
What’s the difference between a Stage 2 and Stage 3 cam?
Registered. Running a stage 2 is better than a stage 3 on a supercharger set up because of the overlap in the cam. It will let out the vacuum pressure and you end up loosing boost. the valves don’t close fast enough.
How much HP does a Stage 2 tune add?
The APR Stage 2 ECU Upgrade is the first step towards making more power! This simple upgrade requires an upgraded exhaust system and intake system and no other engine hardware modifications and produces 270-283 HP with 319-350 FT-LBS of torque .
