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Only if they are worn.

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Q: Should you replace lifters and rockers and pushrods?
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How do you replace the hydraulic lifters in a 1973 to 76 Chevy 350 engine?

It's not recommended to change just the lifters. The cam and lifters should be replaced together. To get at the lifters, you can remove the rocker covers and intake manifold, loosen the rockers enough to get the pushrods out, then pull out the lifters.

How do you remove lifters from Chevy 350 engine?

remove intake manifold and rocker covers. loosen nuts on rockers and remove pushrods. lifters should lift right out of their bores.

How can you tell if you have a stuck push rod?

Pushrods don't usually cause many problems, but you could pull the valve covers off and check to see if everything is in working order. All the rockers should be snug and the pushrods should resist rotation.

Can you adjust the rockers on your 96 Saturn sc1?

there is no adjustment available because the motor uses hydraulic lifters. If you are having problems with the rockers, you can check the torque, they should be 19ftlbs from rocker arm shaft to the head

How do you replace lifters in a 3.1 Chevy Malibu?

Which way should the holes in the side of the lifters be facing when they are installed in the motor in a 2001 chevrolet mailibu mo

How do you tighten up lifters On my 1993 Ford Festiva?

if you look at your rockers and see no adjustment screw, you have hydrolic lifters. before you remove the rocker arm, see if any rockers have movement, if they DO then that rocker must have the lifter replaced. put a breaker bar on the main crank bolt and rotate it in quarter turn increments 2 full 360 degree turns( yes that's eight times) and as you turn it, pause at each quarter and recheck all rockers for movement. if more than 3 lifters move, you should get a full set as they all are almost warn out. remove rocker arms, pull out moving lifters from rockers, put new ones in after soaking lifter and rocker in oil and allow rocker to hold oil as you push in new lifter, and put rockers back in. if you have adjustment screw, you will have to rotate engine as described above, but check at each quarter turn to see if you have movement from rockers, adjust screw so the movement is lessened to just 1/1000 th of an inch from valve. hope this helps ...{ASMDEMON}

What kind of cam should you use for a 350-4-bolt main?

1) For performance similar to original, go with a cam ground to original specs. 2) For higher performance, get a packaged kit including pushrods and rockers to match the cam. Some kit may also include or require different valve springs and/or lifters. 3) For mix-and-match: Buy heavy steel valve covers. Don't bother getting a nice paintjob on your hood.

How do you remember which pushrods go where in a 1996 Pontiac Grand Am 3.1 liter engine you were replacing the intake manifold gasket and you broke one of the push rods?

There are a total of 12 pushrods on a GM 3.1 V6 engine from 94 through 2005. 6 are 5 & 3/8 the other 6 are 5 inches. They are for intake and exhaust pushrods. The best way is to install them and place them back where you took them off but if you didn't you will have to install them back and observe that the pushrods that are in a slight angle are the long ones. The short ones are straight down. You should always place your lifters, pushrods and valves where you took them off but I know that many people make mistakes since we are humans. Also look at your cylinder heads and see where the intake and exhaust valves are.

How do you adjust or replace the lifters on a 1996 Chevy Cavalier?

Actually the 96 cavalier i just rebuilt for a guy has an Over head valve engine in it meaning it has a cam inside the block with lifters and pushrods running up to the rockers up top.To start off make sure your engine is set to TDC #1 cylinder adjust the rocker nuts to 0 lash then 1/4 turn to tighten .Then put engine on TDC #3 do the same thing . Then cylinder #4 TDC . Then #2 TDC. Once you have done this on all 4 cylinders install the valve cover and it should fire right up. to do so you will have to remove the valve cover on the top of the engine. it would be a good idea to go to a parts store and purchase a repair manuel for your car if you have never done this type of work.

Does a 1975 350 engine have mechanical flat tappet lifters?

typically no it should be hydraulic lifters unless someone has changed the cam and lifters in the engine.

If a 1996 Chevy Cavalier has 187 thousand miles should you replace the lifters and the camshaft?

No, If it runs good just drive it; spend the money on something you need.

How do you adjust the rockers when you change the push rods on a Chevy 305?

answers vary, but factory specs are best... ...everyone should have a manual for their vehicle(parts store or dealer), and a local library should have professional shop manuals available in the REFERENCE section for free...make copies of the appropriate up and good luck :) With the new pushrods in place, and the rockers loosely in place, and the #1 piston up for compression (both valves closed), tighten the rocker nuts until there is 0 lash (no up and down pushrod movement) plus 1/2 turn on intake #'s 1,2,5 & 7 and exhaust #'s 1,3,4 & 8. Rotate the balancer one revolution to bring #6 piston up for compression and repeat the process on the remaining valves. This assumes hydraulic lifters. Solid lifters can use the same process except putting in cam manufacturers lash specification instead of using 0 lash and no 1/2 turn preload.