So, we need.
Lifters from a 60 degree GM V6 2.8L - 3.1L - 3.4L-3100-3400
Use the retainer and bones out of a FWD 3.8 with roller cam (1986/87 Vin "3" 3.8 roller was mentioned)
Aftermarket Rollercam and cam button. (COMP)
Comp Cams 258HR ($250ish) works with the stock replacement timing chain, works with the cam sensor
Stiff enough springs to support the roller cam. Comp beehives, LS chevy springs. (I have ls6 springs left over from a motor build that are the same size as the comps)
87buickracer said:
ok folks,here it is.The part number for the pushrods is sealed power #rp 3253 and melling # mpr-309-B. length is 8.471".For high horse power applications I would use the comp cams 8.500" with adjustable roller rockers only.For non-adjustable stock and heavy duty stock rockers non-adjustable use 8.471"(rp3253 or mpr-309-B).At your local parts store you want the pushrods for a 1986 buick lesabre 3.8 v6 engine with vin code "B" as in Boy.This is the flat tappet cam motor pushrods,not the roller cam motor.Or if you have the money,just have comp cams make you a set of custom chrome moly pushrods 8.471".You can also vary the length a little depending on the thickness of your head gaskets and if your running adjustable roller rockers.So good luck to you guys and lets get some feed back on this set-up once we get the motors running.I know I can't wait to get mine fired up with my dual pump set-up.
You also said something about using 8.500 inch pushrods. Woulnd this increase the preload on the lifters when using non-adjustabl stock rockers. Then again, if it is a little long, you could shim the rocker shaft a few thousanths.
Custom length pushrods.
Sound about right so far?
please add or correct to the list. Can the dog bones be used from the donor mor, i.e., 60 degree V6? Does the reatining plate have to be from the 3.8 FWD (I would guess yess to fit the valley).
Thanks guys
I'll be going to the u-pull-it in a few weeks, wanna get my list strait.