418" LS3 stroker with 237 Cathedrals heads to dyno
#24
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That's good to start with. A little more rpm for 700. Change in cam and there it is without using a better head. That's a great combination. If the heads had more flow above .650 you could add more lift. Not many have that much with a smaller size engine Na. Best wishes with the new combination.
#26
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Location: Coast of San Mateo County Between Pacifica & HMB
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Congratulations! Very Good #s! Especially with Header size limited by
Chassis! Is your Super Vic Ported? Also how much vacuum are you
Pulling at 7000 RPM (that is a vacuum pump right?) Another 4*
Exhaust duration would help, especially with N20, and you are right
At the border with carb size. 950 worth a few a few at the track
But probably not worth the Driveability loss on the street.
Not a knock just looking where a few more might be in your combo,
Again congrats on your results, the car will be insane on the streets!
Chassis! Is your Super Vic Ported? Also how much vacuum are you
Pulling at 7000 RPM (that is a vacuum pump right?) Another 4*
Exhaust duration would help, especially with N20, and you are right
At the border with carb size. 950 worth a few a few at the track
But probably not worth the Driveability loss on the street.
Not a knock just looking where a few more might be in your combo,
Again congrats on your results, the car will be insane on the streets!
![Grin](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_grin.gif)
#27
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Not bad.
lol. Can I HAVE it?lol.
congrats !!!
lol. Can I HAVE it?lol.
congrats !!!
#29
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That's good to start with. A little more rpm for 700. Change in cam and there it is without using a better head. That's a great combination. If the heads had more flow above .650 you could add more lift. Not many have that much with a smaller size engine Na. Best wishes with the new combination.
![Name: 41820dyno20graph_zpsk62gficq.jpg
Views: 1159
Size: 2.15 MB](https://ls1tech.com/forums/attachments/generation-iv-internal-engine/651458d1501516797-418-ls3-stroker-237-cathedrals-heads-dyno-41820dyno20graph_zpsk62gficq.jpg)
Congratulations! Very Good #s! Especially with Header size limited by
Chassis! Is your Super Vic Ported? Also how much vacuum are you
Pulling at 7000 RPM (that is a vacuum pump right?) Another 4*
Exhaust duration would help, especially with N20, and you are right
At the border with carb size. 950 worth a few a few at the track
But probably not worth the Driveability loss on the street.
Not a knock just looking where a few more might be in your combo,
Again congrats on your results, the car will be insane on the streets!
![Grin](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_grin.gif)
Chassis! Is your Super Vic Ported? Also how much vacuum are you
Pulling at 7000 RPM (that is a vacuum pump right?) Another 4*
Exhaust duration would help, especially with N20, and you are right
At the border with carb size. 950 worth a few a few at the track
But probably not worth the Driveability loss on the street.
Not a knock just looking where a few more might be in your combo,
Again congrats on your results, the car will be insane on the streets!
![Grin](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_grin.gif)
thanks, I hope it is insane on the streets, as long as it gets the ice cream home in time
![Burnout](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_burnout.gif)
I would probably sell it.
![Cheers!!](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_cheers.gif)
#31
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Trying to get 7/16 studs with 8 mm tops for my rocker arms. But everthing is ready. I have a very similar combination. Just more lift and around 8 degrees in duration. FRH ls3 heads and Tick custom solid roller. Simple and effective = a very good combination. Best of luck again.
Last edited by *LSX RACING*; 08-04-2015 at 06:40 PM.
#33
#35
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With 250 more rpm would add up around 700 horsepower.But here's the kicker all done with a simple not over 420 cubic inches. Any one can make power with anything over 427 ci. and a decent head package 670 try that with a normal hydraulic roller 416 with a fast intake. You may lose some Tq but I think he will enjoy the top end. Simple solution for the bolts are 2 fold have ARP do custom set or purchase 7/16.Better yet call and get new trunions to match. Thanks again ER Racing.
Last edited by *LSX RACING*; 08-06-2015 at 06:11 PM.
#38
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I'd be all over this ***IF *** the damn intake manifold wasn't black. LOL
GLWS
GLWS