There are 2 different types of Roller Rockers
1. Roller Tip
2. Full Roller

What is the difference between these two? Im goin to assume full roller are better but is it really worth the big difference in price? Its only a mild 305 with a mild cam.

 

Depends what your looking at for a budget, roller tips are better than stock and usally $115 or less full rollers are more expensive usally $250+ but you can find them used (I sold a set of 1.6 gmpp new in box w/ locks for $180 shipped IIRC) for alot less. full rollers are better when getting into higher lift cams and also its less where and tear and some are completely rebuildable so you can truly own them for the rest of your life regardless of motor.

 

are roller tips worth putting on over keeping it stock or should i keep saving up for full rollers? My cam is:
ADV. Duration (INT/EXH): 288 / 288
Duration @ .050" (INT/EXH): 214 / 214
Valve Lift (INT/EXH): .443 / .443
Lobe Centerline: 112
Power Range: 1700-5200

 

Roller Tip: Only the contact point on the valve stem has a roller.

Full Roller: Tip has roller, and also, the pivot point, where you normally just have the ball type pivot, also has roller bearings. Reduces friction, eliminates a possible wear point, and is just better.....

 

If your not going to do anything else to the motor in the future
or upgrade, HP to dollar not justified.

You could take that $120.00 and invest in a good tuneup or
spark upgrade.

Although going from 1.5 to 1.6 roller tip would add a little for
the price.



Later

 

thankk you for the advice what is rocker arm ratio and what is difference between 1.5 and 1.6 ratio?

 

Simple answer, its going to give you .1 more lift at the cam as the roller
tip end is that much longer.
Save up for better upgrades.

HTH

Later

 

thanks everyone, and for future reference will the 1.6's or 1.5's for that matter fit under stock centerbolt valve covers?

 

Two motors ago had a set of Comp 1.6 roller tips under
my center bolts.
Those are vette heads but no valve cover mods.
Comp 1.6.
Also had them on my Iroc iron heads before going to the aluminum vette's.

Later

 

stock height centerbolts correct?

 

self aligning and non self aligning what is the difference between both of these?

 

Stock height. Yep. You have to go with narrow body rockers though, else you run into clearance issues elsewhere.....

 

depending on the rocker arms you may have to modify the valve covers,,, due a search and youll find everything you need to know about the rocker arms and valve cover mods.

 

I have narrowed down to the best full roller rockers for me (if i were to buy them) If you click this link : http://www.summitracing.com/parts/PRO-66920C
Do you think they will fit under my stock centerbolt valve covers?