1Bear

iTrader: (1)

You’ve received some good info thus far and unless you could either find a viable candidate for a replacement to install as-is or have the ability to do most of the assembly work yourself, my suggestion would be bite the bullet and pick up a crate engine. Again, as has already been mentioned, put a pen to paper and I believe you will find that you may be better off from the start doing so. I too feel the roller cam route is the best bet now-a-days given the oil currently on the market is really not designed with flat-tappet cams in mind, and while it’s marginally fine for a broken-in engine, it is hap-hazard getting one broke in and have a happy long life span using it. In the past for high-torque/low rpm TBI applications I have had decent results using a factory roller designed for the 87 350ci Corvette and IROC-Z Camaro in conjunction with 1.6:1 ratio rockers. The duration at lash point in degrees (intake/exhaust) is 294/294; duration at .050” tappet lift (intake/exhaust) is 202/206; and maximum lift with 1.5:1 rocker ratio (intake/exhaust) is .403/.415. Valve lash is zero/zero and lobe centerline is 115 degrees. With 1.6:1 rockers, valve lift would come in around .430/.443. I’ve used this cam in non-roller blocks by cutting off the ears of the cam thrust plate to use it just as a spacer, machine the cam gear for a turned down solid thrust bearing (there wasn’t a cam gear made for a button for the factory hyd-roller cams, as the bolt pattern is smaller) and modify the timing cover for enough support not to flex and run retro-fit lifters and even modified a couple of blocks to use the factory spider, but this is not a good option due to the lifter bore heights being different between the flat-tappet and roller-tappet blocks and keep in mind this was something being done 20 years ago. Another cam that would be very similar would be the factory LT4 cam (not the HOT cam). There are plenty of options available now that would take a lot less effort and dollars, not to mention that even though some of the old cams still might function for a high torque/low rpm combo, finding some of the old cams would be about impossible now and there again, so many better options out there that doesn’t require purchasing additional components such as the 1.6:1 rockers. I mainly told you all of that to let you know there are options, it’s just whether or not you have the ability to make it happen and whether or not it’s really worthwhile.

Richardman1992

iTrader: (5)

turns out that 350 that i thought had 140k miles on it probally doesnt have so many miles. the guy selling it compression tested it and got 205-215 lbs in each cylinder. i dont want to spend 2 grand on a new engine so i am going that route

Richardman1992

iTrader: (5)

can anybody who has ordered an ebl flash chime in on how to order it directly from the site. im kinda confused by what he wrote about using paypal...
also, does the ecm self learn with/without the wideband sensor or do i need to make the changes myself?

tenhorse

what is the site? i've never heard of ebl tune. sounds interesting. i have an old tbi camaro that i may slap that tuner on so i can throw in an old 388 stroker that i have laying around to replace the stock 305.

Richardman1992

iTrader: (5)

Tenhorse bobr's website is dynamicefi.com. Go the to forum thirdgen.org there is a GIANT forum in tbi camaros and the use of ebl flash with them

Richardman1992

iTrader: (5)

Update on the truck. Got the vortec engine I was looking into and a 4l60 out of a 92 with 70k on it for 400 dollars. Fluid is clean and isn't burnt. However, the trans is a major PITA to remove. I am out of time to work on this truck... May just save the money and pay someone to r&r it... I can tell this will be a 10 year project