2.02/1.60 worth it with my setup?
Thread Starter
TECH Fanatic
iTrader: (7)
Joined: Oct 2007
Posts: 1,177
Likes: 1
From: Little Rock, Ar
2.02/1.60 worth it with my setup? I plan on going with a stock bottom end(rod bolts, main girdle, main studs), with CC306, ported Stock heads and Ported stock Intake manifold...
Would it be worth it to install 2.02/1.60 valves? I know it would benefit from it but would it actually be worth the money to have my heads machined and the whole 9 yards...?
And to go ahead and get this out of the way... Im not buying aftermarket heads... budget build..
Would it be worth it to install 2.02/1.60 valves? I know it would benefit from it but would it actually be worth the money to have my heads machined and the whole 9 yards...?
And to go ahead and get this out of the way... Im not buying aftermarket heads... budget build..
May not be worth it. You will have to go to bigger intake seats I know for a fact, I *think* the exhaust seats will take a 1.600 valve but can't remember for sure. Some of the best LT1 heads out there use 2.00 and 1.560 valves and these work on stock seats.
Trending Topics
12 Second Club
Joined: Aug 2007
Posts: 387
Likes: 0
From: North Versailles, PA
I'm doing a similar setup and my engine builder said basically that it is not worth the money for the tiny gains if any you will see. After the long explanation I see what he means. If you have the money to blow see what happens but for a budget build forget it.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
The stock valve setas are only 2.00/1.56 so if you machine the seats as large as possible, a 2.00/1.56 valve fits perfect.
If you use a 2.02/1.60 valve, you are just placing a larger valve in front of the seat and same size hole so the air has to go around more valve diameter before entering/exiting the cylinder. You will lose flow and HP over a 2.00/1.56 valve.
Lloyd
If you use a 2.02/1.60 valve, you are just placing a larger valve in front of the seat and same size hole so the air has to go around more valve diameter before entering/exiting the cylinder. You will lose flow and HP over a 2.00/1.56 valve.
Lloyd
Thread Starter
TECH Fanatic
iTrader: (7)
Joined: Oct 2007
Posts: 1,177
Likes: 1
From: Little Rock, Ar
The best thing you could do is get a set of stock LS1 valves (2.00 / 1.55) and have the guides switched out. Having the guides switched should cost about $150. You can get a set of LS1 valves for about $30-50. Then, add the $150 = $180-200. That's less than you'd spend on a set of 11/32 aftermarket valves. You'll have a larger valve than stock, thinner stem diameter that'll flow more air, and do it on a budget.
You also either have valve springs or will need a set. You can order a set of Patriot Golds (LS1 ones) for $250 and be set.
You also either have valve springs or will need a set. You can order a set of Patriot Golds (LS1 ones) for $250 and be set.
