Learning from experience
I have a pair going on my 370 as well. Thru a stock ls3 intake and a 9 inch, I'm hoping for 475rwhp, but I'd be happy with 450.
Stock ls3 intake here as well.. Built 60e with big converter and stock ten bolt with 373s. 475rw will make me very happy, expecting 465, anything less will disappoint.
I'm just not getting my hopes up for disappointment. In the back of my mind, I'd be upset if I didn't see 475, but I've been down the road of hopes and dreams before.
https://ls1tech.com/forums/showthrea...2#post16984292
Less cubes, less compression and less supporting mods. Making a little over less than 10 HP than your setup. And the cam is designed to peak around 6k. Which it does. And this was done on a true 4 inch bore.
Less cubes, less compression and less supporting mods. Making a little over less than 10 HP than your setup. And the cam is designed to peak around 6k. Which it does. And this was done on a true 4 inch bore.
Lets not forget the OP stated he had problems at lower settings, this tells me there are tuning issues. For whatever reason.
I just can't see the small area of less then optimal valve shrouding playing much of a role here if any. Small engine or big engine which ever, at worst the top end HP might be down slightly. It will not keep an engine of these sizes with head flow numbers as these from reving, 500+ ci maybe.
I just can't see the small area of less then optimal valve shrouding playing much of a role here if any. Small engine or big engine which ever, at worst the top end HP might be down slightly. It will not keep an engine of these sizes with head flow numbers as these from reving, 500+ ci maybe.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?
Pouria Savadkouei
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
but apparently there is people on here that think they know everything and will not listen to anything someone else has to say
I thought this as well, when I first read it. I'm sure a number of things were changed along with some tuning. Not just a same day back to back comparision.
Yea, it really could have been anything in the topend. For an example ,I changed 3 different cams in a 406SBC a few years ago because it wouldnt rev beyond 5K. It wound up being the sparkplugs! After the plug change, it would slam the 7K chip in the MSD and went from a 12.55 to an 11.30, 112mph to 120! Best 30 bucks I ever spent on a car.LOL
Whether it be a cam mismatched to the heads or something as simple as incorrect length pushrods.
The argument at hand was the heads being too much for anything less than a 4.065 bore, which my example and many others have proven false.
It was actually. It doesn't change the fact the heads should not choke on the op's engine. And the fact that the example I posted is making roughly the same power as the op's engine is making the point that something else is wrong with his combination.
Whether it be a cam mismatched to the heads or something as simple as incorrect length pushrods.
The argument at hand was the heads being too much for anything less than a 4.065 bore, which my example and many others have proven false.
Whether it be a cam mismatched to the heads or something as simple as incorrect length pushrods.
The argument at hand was the heads being too much for anything less than a 4.065 bore, which my example and many others have proven false.