As the title says, what cam should I get when I buy the assembled Trickflow heads (from Summit). I will also get some headers and roller rockers, so any suggestions for those are also appreciated.

If anyone thinks I should not get the Trickflow heads, let me know what I should get instead.

Everything is going on a -95 Camaro z28 1LE, the car already have K&N FIPK, Trickflow coated intake elbow (lots of horse power ), de-screend MAF (for some reason) and a madwolf tune (I will get a new tune when it's ready of course).

The car is a M6 with center force dual friction clutch and stock 3.43 rear end.

Looking forward to hear about your ideas.

/Fredrik Pettersson

 

Ya didn't give any engine details.
Your cam is Dependant on your head flow numbers and compression.
Call a cam manufacturer they will give ya a better idea what cam for your set up instead of taking opinion's and guesses.

 

If they are "out of the box" Trick Flows, the 62cc combustion chamber is going to drop your compression ratio too low (almost a full point). They are intended for blower setups, the way they leave the factory. Or are you planning to put a blower on it?

 

I see, I´m not planing to run any blower. I guess I could mill the heads, but maybe there are better heads for me out there then.

1racerdude:

I haven't bought any heads yet, but if I would buy them they would be stock Trickflow heads, so they would hopefully flow (according to trickflows website):

0.100 51 58
0.200 136 98
0.300 191 136
0.400 230 163
0.500 253 177
0.600 254 190

The engine is stock except for the previously mentioned small mods.

So if Trickflow are out of the question (due to low compression), how about Edelbrock, GM LT4, AFR or others?

 

If ya are going to use them out of the box then AFR's would be my choice.
Porting a set I would do the Trick Flow,AFR,LT-4,stock. Now Loyd does a good job on stock castings and would be fine up to 550-600FWHP with his S-3 and save ya money that could be put elsewhere.Loyd can get those TFS number's--no problem.
Personally I would use a set of SBC heads and have them converted to reverse flow,but ya are looking at $35-4,000.00 ready to go for a good set not a killer set.But that's me and when I build one I try to get ALL HP it can make and give the customer his money's worth.
That's a lot to mill those head's .010=about 8CC's.Ya would have to run thick intake gaskets,unless ya had the block "0" decked with flattops.Ya could also have them angle milled and re cut the intake side of the head,PITA and pricey.

 

I would like to have my stock heads ported by Loyd, but it would be quite a hassle, since I'm not in the USA but in Sweden. I think I need something that works out-of-the-box (maybe just port matching and a clean up). My goal would be to have somewhere near 400-500 streetable hp (no dragstrip racing for me). A great bonus would be if I could pass the emissions test here in Sweden with it also.

Is my goals reachable with a budget of ~$2500? What combo of heads/cam/headers/? should I go for? I don't want a blower, because it creates a problem with the emissions testings here.

I have a friend of my brother over in the states right now and I can put some boxes in the containers he's shipping to Sweden, that's why I want something that is more or less ready to use when it gets here. The friend is leaving in ~September, so time is slipping away.

/Fredrik

 

Check with the popular head guys here, like Lloyd Elliott, and explain the urgency of your needs. They might be able to work something out. The TF's are similar in flow capabilities to a stock LT4 head. At least the LT4's would keep your compression ratio at 10.5:1.

 

Injuneer has a good idea. Let Loyd furnish you castings and assemble ya a bolt on set. He can do you a cam to match the heads also. I will get his phone number and PM ya with it.

 

Those are all good ideas, but I would really like to just ship things one way (US to Sweden), since I can get free shipping (possibly even without customs and taxes) in that direction (in the friends containers). Maybe I could just buy a set of used LT1 heads (in US) and have them sent directley to Lloyd for porting and then have him send them to the friend. What are the prices for used LT1 heads over there and are they commonly available?

Ths is starting to look more complicated then I first thought, but I really appriciate all the help/suggestions you're giving me.

Thank you,
Fredrik

 

Ask Loyd to supply the castings and ship them to your friend after they are fixed and ready to bolt on. The last I checked they were 2-4 hundred for heads.

 

Its easy enough to buy a set of LT1 castings in the US and send them to Lloyd. I have a set I'd be willing to sell to you, and ship them directly to your head porter. I suspect they also keep cores in stock and can sell you a set without "exchange", for a small added cost.

 

When talking to Lloyd, tell him what kind of emisson testing you need to pass. He can have the cam tailored to meet some sniffer specs.

See this recent thread on an emission test on LE1 setup:

http://web.camaross.com/forums/showthread.php?t=387321

 

This is getting a lot more complicated than I first thought. Now I have no idea what to do, there are too many options out there. Let me re-phrase my question to:

Is it possible to reach ~450 fwhp for ~$2500, or what hp level can I reach with ~$2500 and how can I achieve this (without a blower or turbo)?

I appreciate every one who is trying to help me out here and there are indeed some good suggestions in the thread, but I just don't know how to proceed from here.

/Fredrik

 

Doesn't Summit sell LT-4 heads, but you would also have to buy the LT-4 intake. Something to think about.

ZMAN

 

Yes, I have seen thier LT4 conversion kit (including heads, intake, cam, rockers, gaskets) for $2289, maybe thats what I should get. Does anyone know where to find that kit cheaper, so I can get a pair of headers also and still make it around $2500?