When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I’m new to this page and I’m trying to help my grandfather out.
He has a 1948 Chevy woody with a lt4 in it that puts out 650horse. Other than that I have no idea what any of the specs are.
I was wondering if you guys could help me out with what oil, how much oil and all that good stuff.
edit:
I don’t have much information on it at this time. It’s beloved to be out of a corvette not sure on what year exactly. I get that I’m not giving you much to work with but anything would be helpful.
Last edited by hannah._.1; Jun 25, 2020 at 11:10 PM.
650 hp? Yikes!
That is some crazy HP for a NA 97 LT4 Gen 2 small block.
must have those special triple hump heads and a 3/4 extra hot cam.
pull a valve cover off, should see some roller rockers. 1.6 if stock, but you never know.
mobil 1 fill from the factory.
muse dipstick to tell u how much.
somewhere around 5-6 quarts.
I like how simple and clean everything looks. I must say 650 horse seems severely optimistic for an NA LT4 especially with those diameter and length primary tubes, stock manifold, that warm air filter setup, etc. It's certainly possible to do and I'm sure it's been done before, but we're not talking a streetable setup nor one that looks like what I'm seeing in the photo. Anyways, if the bottom end of the motor has been built, I would consult with the engine builder because the bearing clearances will dictate the proper oil viscosity. As far as how much oil, that will depend upon the oil pan that is being used. I would put 5 quarts in it and see where that comes to on the dipstick and take it from there.
If it has a stock pan the oil fill is 5qts. Aftermarket pan can hold more so just check the dip stick after adding 5 qts...and starting the motor for a moment to fill the oil filter
If the motor was rebuilt with wider bearing clearances than stock than typically that builder would spec 20-50 but otherwise 5-30 oil is what they use
The distributor is called a Optispark and is on the front of the motor behind water pump. If the motor runs don't touch it. The cap & rotor are scheduled for 100k mi replacement
7 Most Reliable High-Performance Engines GM Has Ever Built
Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.
Lt4 with 650 horse 
