jerflash

iTrader: (1)

i got this 350 motor for free out of a 88 suburben i wanted to punch it out to 383 and have about 450-500hp but the thing that is driving me nuts id that it is an 88 engine but has a flattap cam i tough all 88 are to be roller would roller lifters and a roller cam go in with out modification help me
email me if you want at jerflash@optonline.net

jerflash

iTrader: (1)

could i use the roller lifters out of my 89 tpi 305 with out modification
i hope to have a 383 tpi
ported polished valve job on l98 corvette heads
lt4 hot cam kit with 1.6 rollerrockers
flowtech shortys and y pipe
flowmaster catback "no cat"
no polution
edelbrock tpi base and accel runners
you think i can get 450hp

RB83L69

No, you can't use the factory's bizarre roller nightmare in anything but a block that's set up fot it. I know of no way to put that crap in an older block at all, because there are things missing that would be required.

However... for all the decades that the rest of us had been building roller motors before the factories "discovered" the idea, we've been using regular old blocks with no modifications whatsoever. Comp, Lunati, Crane, Ultradyne, etc. all make the parts necessary to do this. I drove a totally unmodified 73 model 400 block with Comp roller cam, lifters, timing chain, and rockers to work this morning, so I know it can be done and how to do it.

So, you can't use your 89 305 stuff, but you can get a package that will work in any block you might happen to have. Check the web pages of the companies I mentioned for inspiration.

------------------
"So many Mustangs, so little time..."
ICON Motorsports

IrocStan

I'm going through this same thing right now. I've found that 87-89 chevy V-8s crack in the lifter valley, so I won't touch another one. All passenger cars had roller cams from 87-up. All trucks had the flat cams, but some had provisions for the roller cams. When I say "provisions" I mean that they had the little "stubs" in the casting to mount the spider. They also have the tops of the lifter bores machined flat.

That is what I am looking for, an 90-up 350 w/ provisions for roller cam. I want to use the factory style lifters so I don't have to spend the cheese for the retrofit lifters.

Like I said earlier, I won't put any money in a 87-89 chevy V-8. I've had two crack in my car alone. The original 305 had a crack on both sides of the lifter valley, about 8" on one side and about 3" on the other. I bought a 88 350 out of a Camaro, overhauled it, and installed it. 3 years later, I pulled the intake off to do a cam/intake upgrade and guess what I found!!! It is a shame.

------------------
87 IROC 350
Mods: 3:42 Torsen, pocket ported 083 heads, complete Edelbrock exhaust, Most free mods, Most little mods, aluminum d/s. Edelbrock STB, boxed rear suspension pieces, urethane bushings everywhere.
Stock cam, chip, runners, base, and trans
13.94@103mph, 2.25 60'
Recent stuff: SSM sfc's, Homemade relocation brackets, Ported SLP runners, ported base, EGR!
Current/future projects: homemade torque arm, and 27x10 Hoosiers (need wheels!), and Prom Burning
Planning new engine build, possibly 383 w/ TFS 23*

RB83L69

Stan:

Cracks along the lifter valley, especially from front to rear about an inch or an inch and a half above the lfiters, are almost always the result of freezing.

Too many people have these things without that problem. If you have had 2 do it to you, there's something in common, and it isn't the motors.

Factory roller lifters don't cost that much different from properly designed ones. Of course if you can come up with a block already completely equipped with that stuff, that's fine; but if you have a block without those provisions, like jer has, you'd need to use the original design roller system in it.

AND BTW, not all passenger cars had rolller cams from 87-up. One of my brothers had a 87 Monte Carlo SS with the L69, it turned out to be flat tappet.

------------------
"So many Mustangs, so little time..."
ICON Motorsports

jerflash

iTrader: (1)

i think my engine might have the pervisions what do the pervisions look like
i have a pic i can send for you to verifiy that i have it

five7kid

iTrader: (14)

From what I've heard (have to admit haven't seen it personnally), the block casting has the nubs there for the lifter spider and cam retainer. You'd have to have them machined for a flat face, drilled and tapped. By the time you do that, you could probably buy RB's retrofit rollers.

------------------
82 Berlinetta, orig V-6 car, now w/86 LG4/TH700R. 2.93 limited slip. Cat-back from '91 GTA, Accel HEI SuperCoil. AMSOIL syn lubes bumper-to-bumper. Daily driver, work-in-progress (LG4 w/LB9 block, ZZ3 cam and intake, WP 305 heads ported & polished, Hooker headers & y-pipe, 3" Catco cat).
57 Bel Air, my 1st car. 0.030 over 396, Weiand Action+, Edelbrock 1901 Q-Jet, Jacobs Omnipack, 1-3/4" headers, TH400 w/TCI Sat Night Special conv & Trans-Scat shift kit, 3.08 10-bolt w/Powertrax, AMSOIL syn lubes bumper-to-bumper. Best 15.1 @ 5800' Bandimere. Daily driver while Camaro was being put together.