I am about to start putting my engine back together. here is what im working with.

350 block
Summit flat top pistons
906 Vortec heads
Comp Cams 286H flat tappet cam
Edelbrock Vortec Intake
Edelbrock 750 carb

Are these compatible ? I have never built an engine before and not sure what i need to do in order to get me the HP im looking for (400hp).

Do the heads need to be modified? Im aware of the valve stems being cut but anything else needed?

What valve springs and rocker arms are receommended?

Need you guys help so i can order what i need and get the heads dropped off to the machinist.

thanks for your help

 

Anybody?

 

Hey, the camshaft, heads and pistons are compatiable with one another without a doubt. You will have to get the valve guide cut down or either run beehive springs with retainers and locks to match. I have used the blue GM pn:12499224 LS6 springs before without any problems but you'll have to have the comp cam PN:774 retainers and the comp cam PN:648-16 locks to make the springs work. The rocker arms are really whatever you choose stamped steel will work, roller tip and full roller will work also, but make sure you go with the self-aligning style. On a sidenote the behive springs give you a lil more clearance to run full roller rocker arms with any clearance issues. The Edelbrock intake will work well and carb should be fine too. All in all it should be a good lil combo that should make 350-375hp easy. It'll need a 2000 stall converter for best performance but the stock one will work just leave a lil softer. To make your 400hp goal your gonna have to change a lil bit, you'll need a Edelbrock Performer RPM intake or equivalent, Comp Cam XE276HR hydraulic roller cam or something similarly sized, longtube headers and that should get ya close to 400hp at the flywheel. The roller adds more money but will get you your desired power goal.

Be careful and break in the camshaft correctly or you may have problems with it prematurely wiping lobes off, use break in addative and break in oil and follow break in procedures to the t.

 

I need to buy springs so it may be cheaper to just buy the beehive springs, retainers and locks as opposed to paying someone to cut the valve guides and still buy springs.

thanks for the input

 

I checked those three part numbers on Summit. Only about $140 for all three. Will I get better performance cutting the valve guides or fo with the beehive combo outlined above?

 

I like the behive setup myself it makes the spring retainers lighter and all car manufacturers are using this so they cant be wrong. Its supposed to help keep valve to a minimum due to reduced mass of spring, valve, retainer and lock assembly. It just makes sense that lighter parts can move faster easier to me.