Man, haven’t posted in here in years!!! Lol. But this site is still the go too. So here’s my situation. Current car, 01 SS, A4 FLT level 4, yank pt4400, motive 3.73s, pulled motor year and change ago when bought car cause of bad lifter partly because of improper push rod length with MS3 cam installed by previous owner, rebuilt fresh, ms4, ls7 lifters, new almost everything minus bottom end just disassembled and rebuilt. Speed engineering stainless headers, custom over axel duals. Getting some 42# injectors, just picked up a FAST 90, Warr TB. Trying to match heads. Car is on bigs n littles, 28” mickies. It’s max effort only. Non daily. No AC. I’m trying to go as deep 11s as I can. I’ll be doing a 9’ too. Prc 227s look stout but want other comparable or better power options assuming money wasn’t an issue. I have 243s I never installed cause I really ant aftermarket castings. Experienced help would be great. Sorry for the long ars post. Lol

 

Since you already have 243's, maybe check out Advanced Induction, TEA, WCCH. They all have excellent CNC programs with proven results. If money isn't an option, BTR TFS and Mamo Sportsman heads rip.

 

Thanks man. While it is tempting to just port what I have, having such a large cam I like aftermarket castings like the prc heads having a different valve angle allowing for more ptv clearance over stockers thus allowing a bump in compression

 

With PRC 243's and the setup in my sig I ran 11.2 @ 121 mph with a best trap of 122 at pretty much full weight and trans problems ( banging limiter on each shift)

I'm switching to the PT 4400 and rebuilding my transmission and expect to see around 10.8@ 124mph.

What kind of 60' do you cut with the 4400?

 

Money no issue on a 3.90" Bore, Mamo Motorsports 220s. Fully CNCd.

Great Value for the money, MMS 223 Sportsman, as cast with hand finishing.
and a better option for your FAST 90 Intake.

 

Thanks 98, check this out, like I said I bought the car alittle over a year ago after selling the vert in my sig in 2012 (thanks x-wife), figures already has a cam and 3600 stall. We are good. Well as stated car took a dump, bought someone else’s handy work, so anyway all the above I’ve done myself since, bigger cam, bigger stall, rebuilt rear, and have never tracked this car. Lol. Gonna make it worth while though, want an amazing set of heads.

 

Thanks navy blue. I’ll check out mamo

 

Got ya, missed this part in your original post.

Figured I would post my times and heads since I run what you're aiming for and we have similar setups.

 

https://ls1tech.com/forums/dynamometer-results-comparisons/1485608-trickflow-cast-220-heads-228-cam-dyno-vid-graphs-posted.html

Say no more.

 

If you want the absolute best regardless of price you want a true aftermarket casting like MMS, TFS, Mast, etc...

 

Yeah, I like the aftermarket castings idea, any specific heads with the large cam you recommend?

 

The link doesn’t work, but I see tricklow as cast 220 heads in the link. Is that what your recommending?

 

No worries man. I appreciate your info. I’m not gonna spend tons of money just for the sake of it. If prc heads are my best option that’s the route I’ll go.

 

 

Out of dat fast 90. Lol. That’s what I bought. Lol. Well it’s what I have. I’ve looked at the as cast heads before, I just leaned towards prc 227 heads cause I figured they would be matched since tsp used that combo to do crazy shiz at the track lol. But I’ll look again man. Thanks

 

Sell the 243's and go with aftermarket. I haven't seen a lot of track times or dynos with the prc 227's. I went with the tfs220's because I wanted to be able to open them up with the 235 program when I build a bigger motor. The Mamo heads seem to make great power as well. Either way, for a max effort set up, your going to need to dump the 3600 stall and get something more aggressive.

 

I guess ya missed it, but the 3600 stall was what came in the car but when I pulled the motor I pulled it in favor of a yank pt4400 since I went ms4 cam. Yeah I may go with the tf 220s. We will see. Cheaper too lol

 

Are you willing to spend that much money on heads? I have a friend who runs a the MS4 cam with PRC 5.3 heads and a 4k stall. That car runs like a raped ape

 

Welcome. Yeah that's the only downfall to a worked over 243. Especially if they are milled. It does limit PTV with a thinner deck. However, I am am about to install a larger cam designed around my AI 226 heads this spring. It's a 232/240 .620 .604 114+3. While on the "somewhat" larger side, it wil clear fine. Was just throwing that out there for others gauging cam size and clearance while running CNC 243's. That said, I think you are on the right track going with an aftermarket casting. The PRC 227 heads you mentioned are a nice piece for the money. If you decide to dig deeper into your wallet, some TFS heads touch up by Brian Tooley are great. Mamo Sportsmans are pretty awesome as well.

 

Yeah, I was looking at the ported trick flow 220s also. I’ve tried to look on Tony’s website but it says the oroduct page is down. I think I’m torn between trick flow and the prc 227s. I just want the best max effort head for the track.