GOOD HEAD!!?help
im a newbie to the lsx world so bare with me because i like to ask a lot of questions
---im looking for some knowledgeable ideas or opinions on what heads to buy...im stock cube full bolt on ls1 and the cam is a ms3 238/242 605/610lift on a 110lsa (wont be spraying but was told it is a nitrous loving/high rpm cam) I called TexasSpeed twice to ask two techs the same question "what would be my best head option bang for buck with my build' and they recomended their as cast 225cc heads...only thing that scares me is are they just saying that to sell thier product or is something like a stage2.5 ls6/afr head going to be better for me?? anyone running TSP as cast225/ ported 215 or 227 heads?
-thanks for your time and help guys!
...so my price range doesnt really matter as long as im getting something worth the extra money...i dont want to get the 227cc heads or AFRs paying $2400 over stage 2.5ls6 or as cast 225s for $1600 if im only going to make 5-10 more HP for 800 dollars...if $800 gets me 30 more whp in a better head than id consider...what do you think? when you get into well ported heads stock ported vs aftermarket. the peak power may only be 10-15 hp different up top but thats not the the reason to spend the extra coin. An aftermarket cast afr may only make 15 more up top than an excellent ported 243 however it will make MUCH more under the curve maybe 30hp. thats why you go with an aftermarket casting
Trending Topics
The Best V8 Stories One Small Block at Time
Here is his e-mail. When I e-mailed him about a year ago, he quoted me $1,699 and an additional $125 for PM guides.
I am considering the AI ported 5.3 heads. $1,595 for CNC'd new castings with Manley valves. Springs and retainers are extra. Hard to beat that.
http://advancedinduction.com/LSX/AiL...cGM706Head.php
I wouldn't spend over $2k for heads. You're pissing money away as you spend more on a 346. Anyone who believes that is drinking the koolaid. The extra money is better spent on the FAST intake or moving to a carb style intake.
My recommendations based on that 2k budget (in order of preference):
-TEA Stage 2 LS6 Heads with LS3 valves
-Brian Tooley hand ported TFS As Cast 220s with PM Guides and turned down LS3 valves
-Used AFR 205 Heads
-AI Ported LS6 heads with stock valves (if you can find Z06 LS6 heads with the lightweight valves, they would go ahead of the AFRs)
-PRC As Cast 225s
I put a premium on valvetrain weight. So heads with lightweight valves move to the top of the list. Powerwise, these would all be very close. PRC gives more PtV clearance than the others, but the TFS heads are close as are the Ai heads with stock valves. Either way, don't get a giant cam with crazy lobes. Let the head/intake manifold fill the cylinder for you.
There are good vendors on here who can help you. TSP is one. Brian Tooley is another. Martin @ Tick. Geoff @ EPS. Or Tony Mamo @ AFR.
I've had a lot of good luck with them all. Martin and Tony give you a lot of rationale behind why you should run what they recommend, and I usually point people their way. And Brian has been doing this forever and just knows tons. Geoff has designed some of the most popular cams ever in the LS world and knows how to tune anything. So you have a collection of talent from which to draw knowledge.
Aftermarket heads are popular based on marketing MUCH more than due to results.






