Check this beauty out! Head Gaskets

[PacecarTA]

you can and the shafts may break with the added spring pressure required for roller cam
i run a roller on my 87x but i have solid shafts
 
 that kit usually includes the less expensive and usually quieter morel lifters .
fullthrottle includes pushrods with kit but you should ask to have them hold off sending them until the cam is installed and measured using a pushrod tool .. allowing for proper preload
they have morell lifter option vs comp cams lifters and they both take a different pushrod length because of different lifter disc height (about .150" difference)
and limited travel race lifters may need you to order several lengths of pushrods to get it all correct to use stock rockers because they are set with almost no preload , unless you are after a class that wont allow roller rockers i would reccomend rollers rockers if you decide on limited travel lifters

roller rockers vs stock rockers will differ the rod length another .100"

once you have the number that will work with your setup give them a call and they are very quick to get out what you need

[bcn30141]

What length would I be measuring. The longest distance from lifter to rocker after the cam has rolled off the lift? This starting to get technical but I'm trying to hang in there lol

[PacecarTA]

cam at base (intake lifter up check exhaust and vice verse)
with tool installed and rockers installed and torqued ,adjust tool for zero lash ,then remove tool and spin it longer to add for desired preload, then measure tool and order push rods

the roller cam also has to go in with .005-008 end play between the end of cam button and the timing cover(installed and torqued)..they provide the adjustable cam button with shim set  but its your job to add shims as needed to get proper end play

and its your job to verify timing chain length ,they provide a comp cams std timing set (its a double roller so you cant use the tensioner)
on a block like yours with billet mains , fitting steel caps requires a line bore and usually moves the crank center line closer to cam (some shops cut more than others)  it usually requires an undersized timing set (rollmaster) , or a chain set that can use the tensioner (ta perf)  but using a tensioner to take up looseness will require degreeing in the cam as a longer chain than needed will retard the cam

and be sure to check the gear/chain clearance on timing cover , they usually hit double rollers

seeall basic stuff... for buicks

[bcn30141]

Everyone's information is priceless, thank you.... What do you guys think about this....using a higher ratio rocker on the exhaust valve... Wouldn't a higher exhaust lift assist a turbo car? Say 1.55 on intakes and 1.65 on exhaust...

[YGspider]

Hmmm So are these engines at the fault of pushrod old v6 style that we cant run all the way up to fourth gear. Because next year I got a few call outs from some buddies with little Vtec Hondas and a few other small cars that I kind of laughed off. Will the GN win from a 30 mph roll on the highway? Or are these cars only deadly from a Dig? I remember my dad telling me a stories of a stock GN on the highway getting beaten by a stock 5.0 Monte SS back in the day. One thing about the supra is I hear they are torn down very often for rebuild when making any power they shouldn't be making. 

 

[bcn30141]

My top end blow out had something to do with a pinch in a curved part of my metal fuel line coming up to the fuel rail, I think it started suffocating from fuel loss and detonated. I would to put in some sort of braided hose fuel line set up coming in  and get those SS style lines outta there.  I ain't going to run through fourth anymore to be on the safe side.

[PacecarTA]

when my 86 was on TT chip and a 2004r running gta rims with  25.5" tires (mt255/50-16) i would always use fourth gear sometimes as soon as 400ft out , other times i would hold off until 120 mph , and I used OD for several hundreds passes at around 600hp trapping 125-129 and i was running a flat tappet 206 cam and ported irons that would pull over 6k without any issues but with 4th i was trapping around 5400 with a loose artcarr 9" that slipped over 17%
with 28" tires i wouldnt use fourth and really didnt need it
,  now on a th400 i only have three gears and thats been working out ok .
 
if plans are to use fourth  make sure you have the fuel and the tune are  good with room to spare  , those that are running out third and just on the edge will find fourth gear will be more than the tune can handle
keep timing low until the fueling is worked out , only after the fueling is good should you add timing