. seriously a properly done set can support well over 500rwhp NA
cheap heads??
Thread Starter
TECH Enthusiast
iTrader: (8)
Joined: Oct 2009
Posts: 551
Likes: 0
From: Abilene Texas
Thread Starter
TECH Enthusiast
iTrader: (8)
Joined: Oct 2009
Posts: 551
Likes: 0
From: Abilene Texas
317 heads are truck heads.They are 72cc instead of 64cc.A lot of guys with blowers use them because they are 72cc and drop your compression a point.Some people mill them down to 64/63 cc ,port them and install bigger valves.I have seen them milled to 63cc and milled on the intake side and selling on the classified section on this forum sometimes.In that form they are similar to the 243 heads.I tried to explain it to you without confusing you.I have seen them for about $300.00.It might be easer for you to get 243 heads.
Last edited by transwiz; Oct 8, 2009 at 12:51 AM.
Thread Starter
TECH Enthusiast
iTrader: (8)
Joined: Oct 2009
Posts: 551
Likes: 0
From: Abilene Texas
haha yeah i got it i think! lol ok so the 317s are just another differnt kind of truck head with a bigger chamber? do they have bigger valves already or do you have to macheen those?
how close are they to the 799 and 243 heads?
how close are they to the 799 and 243 heads?
the 317's are identical for all intensive purposes to a 243/799 except that the 317's have a 71+cc chamber(lower compression). as far as valve size, a stock cid motor can make good power on stock sized valves
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
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
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0
Brett Foote As far as I know most of them if not all are aluminum.It all depends on your budget. Used low mile 243's are the best bang for the buck.If you can swing it a set of PRC LS6 or Patriots would be even better.How much money do you want to spend?How fast do you want to go?
Thread Starter
TECH Enthusiast
iTrader: (8)
Joined: Oct 2009
Posts: 551
Likes: 0
From: Abilene Texas
why are they better? and i would love to have a head and cam swap for less the 1000 if thats even possable with all the gaskets and everything else lol
the best cam to run with stock 243's is a 300/310 755/770 on a 99lsa. seriously the best cam is one that matches your ENTIRE setup and the desired use of your car. if you do some research on here you can find some good info on setups that have worked for other people
11 Second Club
iTrader: (32)
Joined: Jan 2006
Posts: 3,701
Likes: 2
From: Southaven, MS (near Memphis, TN)
I don't know if it's been said yet, but some LS2 Corvettes came with 799 heads. They were not just on the trucks.
I paid $120 for my 799 heads.... can you say BUDGET? hah Now they're taking up space on my workbench.
I'll have right at $1000 in my head cam swap but I'm reusing my stock oil pump and the heads were so cheap. ARP head bolts are a big chunk to the cost.
I paid $120 for my 799 heads.... can you say BUDGET? hah Now they're taking up space on my workbench.
I'll have right at $1000 in my head cam swap but I'm reusing my stock oil pump and the heads were so cheap. ARP head bolts are a big chunk to the cost.
11 Second Club
iTrader: (32)
Joined: Jan 2006
Posts: 3,701
Likes: 2
From: Southaven, MS (near Memphis, TN)
If you do the install yourself, yes it can be done easy for under $1000. (If you can find a good deal on 243/799 heads) But don't forget the tune 
Texas-Speed had some great cams on sale for $300, I got some pushrods I'll sell you It's all about finding good deals.
haha
Texas-Speed had some great cams on sale for $300, I got some pushrods I'll sell you
It's all about finding good deals.haha
Thread Starter
TECH Enthusiast
iTrader: (8)
Joined: Oct 2009
Posts: 551
Likes: 0
From: Abilene Texas
oh yeah i forgot the tune and i dont have money for the parts themself let alone labor lol lol now im not buying right now thanks tho! wait so you have everything you need and ur only in 1000 bucks?