Will this allow a heartbeat supercharger to bolt up to an ls2 c6? Not sure if I'm reading this correctly and i would like feedback if anyone has any. Thank you. https://www.google.com/url?sa=t&sour...StW6kObo7I57Hb

 

Good question, but if I had an LS2 and wanted to install a Heartbeat SC, I would look for a good set of used / low miles LS3 heads and buy them.

Plus, you will have a set of heads that flow better than the LS2 heads.

Make sense ?

 

Yeah that makes sense. Would I have to change intake and cam also? If I was to change heads should I buy afr or trickflows and what size. Thank you. I am between heartbeat and ecs. My mechanic likes A&A. I think he would meet my needs though.

 

HB replaces the intake... so no need to buy an LS3 one. If you were going to run it NA for a while then yeah you'd need one . You can get an AC Delco stock one for like $200 though last time I checked

Cam is up to you. Doesn't have to be changed.

 

if I go heartbeat I will prob do heads at same time so i don't have to pay for intake and another tune. What heads would be recommended and would my stock ls2 cam work well or should it be changed out. Anything else that should be done at this time? Thanks for the help. I am in between hb and ecs kit. I am worried about accessory wear and belt issues with centri kit, and I am looking to be at 550 to 600 rwhp max for a fast street machine.

 

Either will get you there on stock ls3 heads and the cam you have, no need to make it complicated or more expensive if that’s where you’re going to stop. I’ve got 50K+ miles on an ECS kit, haven’t changed the belt in a really long time so not sure what you mean about accessory wear.

There’s a big thread about the HB setups on here somewhere that has a spreadsheet of results with different mods, pulleys, fuel, etc.

 

Thanks, I am really torn between going ls3 heads cam heartbeat, or ecs kit. I read some posts about water pump and alternator problems and some belt slip issues from the centri kits but its good to hear how reliable yours has been. I'm not looking to push it too far so I may be fine anyway. I only have 16k miles so I kind of like the idea of just bolting on an ecs kit and it would be much cheaper. I'm just looking for most reliable trouble free set up that puts out decent power and no heat issues.

 

I think you'll be happy either way. Couple of positives and negatives that come to mind:
+HB is pretty much stock like quality, the rotors they use will last forever without any maintenance. @CI GS can tell you all about them. The way they do all the hoses, pipes, etc. literally looks like OEM parts to me.
+HB has a heat exchange instead of an intercooler, less obstruction around the radiator where ECS (any centri kit) has an intercooler in front of the radiator. Less chance of overheating if you're in a hot area/sit in traffic. I've not had issues with the ECS kit but it seems some people have issues, no clue why.
-HB has a heat exchanger. May need to be upgraded with a bigger one, bigger pump, etc. to keep intake air temps down if you're doing a lot of pulls.
+HB makes more torque down low. Positive displacement blowers have that going for them for sure. Some people like that, some people prefer the "accelerating" feeling you get with Centris the higher the RPM's go.
+HB is pretty much full boost any time. Centri is exponential boost w/RPM. At 4K RPM's you'll get roughly half your peak boost.
-HB kit costs more
-HB means LS3 heads will be needed as well
+ECS has, IMO, a higher power potential, ~850rwhp with supporting mods.
+ECS is a really easy install. Hardest part is pinning the balancer, which you have to do regardless
-/+I've seen a lot of people not spend the time aligning all of their pullies and then had belt issues. ECS uses a really strong tensioner and it seems to make any pulley alignment issues be pretty obvious. The + is they use a really strong tensioner.
-With the ECS install you do have to trim about a 1" strip off the bottom of the bumper. It's underneath and would never be seen, but for a 16K mile car I thought you'd want to know that. Check out the instructions on their website.
(I've never installed a HB setup so I can't say whether it's easier or harder to be honest).

That's pretty much my thoughts on it. If I were doing it over again I'd still do ECS, but if I had an LS3 car and was OK with spending a little more, it'd be really, really hard not to go with a HB.

Here's the thread where the HB guys have gone full crazy with these setups. It's a long thread.. might be better to start towards the end and work forward/backwards from there.
https://www.corvetteforum.com/forums...this-fall.html

And here's my thread with an ECS kit, also super long. I can't believe it's been 6 years, geez.
https://www.corvetteforum.com/forums...t-ecs-fsp.html

 

What schpenxel says is right on.I have one, and what your looking for it would fit the bill. Instant power and stock feel when your not in the petal.

 

The answer to that is yes. If that allows a stock LS3 intake to bolt on to LS3 heads, then it would work with a Heartbeat blower, provided you buy the 2008 C6 version Heartbeat kit, since that has the right idler/tensioner bracket to work with the early series (passenger side outlet) water pump. You could change the water pump to the later model and then you could order the later style kit and get the benefit of additional belt wrap and not having to take the radiator hose off to install/change the belt, but that’s probably not worth the trouble, tbh.
BUT, those adaptor spacers may very well cause hood clearance problems, although that could be cured by using either LPE subframe spacers or the shorter Hinson mounts. Mind, you, by the time you’re done with that, you may start to wonder why you didn’t buy a set of LS3 heads. From what I’ve seen, the stock LS3 and LS2 cams are nearly identical, the biggest difference being the LS2 has the preferred 3 -bolt timing chain gear.
If you go with LS3 heads, you will need to get 8 of the LS3/L92 specific intake rockers, so that’s an additional expense.
I’ll save you the trouble of reading my convoluted saga on the thread that schpenxel posted the link to, by distilling my hard-earned experience into a more concise form of advice, as follows:
If I were you, and I decided to go with a Heartbeat, rather than with the cheaper and perhaps easier ECS/A&A kit, then, assuming that you want a nice torquey, fun, dependable car, making around 525-540whp (roughly about the same as a stock C6 ZR1) that runs on pump gas without the need for meth, E85, etc. then:
(a) get a set of LS3 heads (new ones are so cheap that I wouldn’t bother buying used ones, unless you get a really good deal), together with the necessary intake rocker arms;
(b) get a Kenne Bell Boost-a-Pump (“BAP”);
(c) get a Racetronix C5/C6 Fuel pump wire harness
(d) get a 90mm pulley from Magnuson (this will produce around 8.5 psi, which is safe with 93 octane pump gas)
Get that all tuned properly, and you will enjoy it immensely, until you get the hankering for more power...
It’s a really slippery slope after that, because then you’ll need to change injectors, fuel system, camshaft, pulleys, balancer, etc,

 

Thank you guys for your input and advice. If I had an ls3 car I think I would just bolt on a heartbeat and be done with it. Saying that I'm an ls2 I might just stick with original plan of an ecs kit. I just think hearbeat would be ideal for my needs but costs much more and adds complexity. Thank you for advice im just trying to buy the right kit the first time and be done with it.