69greyghost

iTrader: (1)

What is a ported set of 243 heads worth and what kind of performance gains will I get from them on a lq4. I plan on using either an ls6 or ls2 intake. Thanks guys.

wildcamaro

iTrader: (15)

Good Cnc ported 243s are worth at minimum $1000...the regular 243 are worth 350-500 depending on condition and which valves they have...port work is around $700-1000 depending on who does them and if a valve job is involved

69greyghost

iTrader: (1)

I found a set of 243 heads that were ported for 700. They are not cnc ported. it comes with stock valves and springs unassembled.

2000PewterT/A

Before pulling the trigger on them make sure they were ported by a reputable porter, if its a home port job I would stay away. Most of the time people do more damage then good.

69greyghost

iTrader: (1)

I was thinking as much, he says hes been doing it over 20 years in his garage and does it for multiple makes. I am gonna pass, he says he also has some dart 225cc ls complet with tooley springs ss valves all new for 1400. I will just keep searching for a set of stock 243's with decent mileage and get a valve job on them seems like the "sure thing".

usdmholden

If he has actual flow numbers and runner volumes, ported heads from the unpopular people can be a decent deal. They won't be worth a premium during resale though.

wildcamaro

iTrader: (15)

Yea people that have ported SBC heads think you can just port match LS heads which isn't the case... Cnc or nothing in my book

Blackpanther99

iTrader: (8)

Just get some CNC ported ones or make sure the seller knows his porting.

Jason 98 TA

iTrader: (4)

You have to be really careful on ebay, lots of junk on there. Read in the dyno section & make a decision based on results you see. The PRC LS6 heads are priced very aggressively so I think you'll find they are a great option. We also offer the PRC as cast cylinder head for slightly more which gives you a full aftermarket casting for a bargain price! We've had customers making past 500rwhp with the as cast PRC heads!!