they will be doing it all im droppin off the blazer to them

 

probably is not a bad price. but i dont know if the horse power and torck gain is worth the cost

 

should get some pretty good torque and power doing 36lb injectors new pulleys for more boost on the supercharger and a new tune and if i wanted to go cheap a v8 would have fixed me up real nice

 

My Lunati cam with 330 inch/lb double valve springs (would rather have gotten behive springs), Pro Comp Ultra Pro Magnum roller rockers were a drop in, along with the ARP studs for them. Although I DID have to get & modify aftermarket valve covers to clear the rockers.
In a day or 2 I'll upload pics to my 'bucket'. I have to resize a lot of pics 1st.

 

hey tom your rockers 1:6 or stock 1:5 al suggested 1:6 that requires some machine work to my heads

 

1.52... as we chase eachother around BF lol

 

I was told as long as ya use 1.6 3/8 stud self aligning and ya use your pivots from the 1.5 they will work.... the part I cant remember is if you need longer pushrods or if the stock will work.

 

may be off here, but I don't think the ratio would affect your pushrod length. a bigger ratio causes the valve to be pushed down farther because of a longer arm length on the valve side of the pivot. as long as the rocker geometry is the same as far as assembly goes, there should be no reason to change push rods. otherwise, why bother with the rockers having different ratios? besides, a longer pushrod would have the possibility of holding your valves open.

 

Rocker ratio does not affect push rod length. How could it, the push rod is the same length no matter what. What it will affect is what ken stated, the travel & length of time a valve stays open.
The cam activates the pushrod, the pushrod pushes the rocker, the rocker pushes the valve open the amount the pushrod pushes it. A different/higher ratio will push the valve farther & therfore holding it open longer allowing more air in or exhaust out.

One thing about aftermarket rockers is to beware that if you get (as I did) Comp Cams Ultra Pro Magnum Roller Rockers you will have to change the valve covers out to a taller, stamped steel (probably like I did) valve cover. The stock covers will not fit on a 2002 4.3 with those rockers.

 

that is sbc swap money