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Search found 1451 matches

by vortecpro
Tue Aug 16, 2022 7:57 am
Forum: Engine Tech
Topic: So which heads will get my 358 in the high 10's
Replies: 82
Views: 4156

Re: So which heads will get my 358 in the high 10's

Your constant testing inspires me! Your not a lazy person-
by vortecpro
Sun Aug 14, 2022 8:51 pm
Forum: Engine Tech
Topic: Can you make 600hp with iron vortec heads?
Replies: 14
Views: 706

Re: Can you make 600hp with iron vortec heads?

compguy wrote: Sat Aug 13, 2022 5:55 am If you have the large port Bowtie Vortec iron heads professionally ported by someone who knows how to do them, 650 to 700+ is attainable even on small 310 cube small blocks.
062 Vortec 'street' heads, no.
When you get the welder out almost anything is possible......
by vortecpro
Sun Aug 14, 2022 8:49 pm
Forum: Engine Tech
Topic: Can you make 600hp with iron vortec heads?
Replies: 14
Views: 706

Re: Can you make 600hp with iron vortec heads?

I'm not familiar with any such racing class, but a local builder put together a 383" SBC with iron Vortec heads, single 4-bbl and is claiming 600hp. He's an experienced old-school guy, but that seems steep. Have you done as well or better lately? Larry is the one to ask Maxrace. I have seen some of...
by vortecpro
Sun Aug 07, 2022 8:19 pm
Forum: Engine Tech
Topic: Value of a factory 454 LS-6 crate engine?
Replies: 11
Views: 600

Re: Value of a factory 454 LS-6 crate engine?

Long time friend of mine has a crate Chevy 454 LS-6 that he bought at the local dealer back in early 1980's. It was never used and has sat for years and the only thing he did to it was a swap to hydraulic cam. He still has the original factory solid cam it came with. The engine was never fired up o...
by vortecpro
Sun Aug 07, 2022 1:54 pm
Forum: Engine Tech
Topic: So which heads will get my 358 in the high 10's
Replies: 82
Views: 4156

Re: So which heads will get my 358 in the high 10's

A better title would be:


"what driveline behind my 350 will get me in the 10s"


Still waiting for you to get on me with that peanut port :D
by vortecpro
Thu Jul 14, 2022 8:31 am
Forum: Engine Tech
Topic: Speaking of welding cast iron
Replies: 22
Views: 1418

Re: Speaking of welding cast iron

Thanks for posting
by vortecpro
Thu Jul 07, 2022 10:43 pm
Forum: Engine Tech
Topic: Welding iron head
Replies: 17
Views: 1128

Re: Welding iron head

No pin holes here.
by vortecpro
Fri Jul 01, 2022 9:53 pm
Forum: Engine Tech
Topic: Welding iron head
Replies: 17
Views: 1128

Re: Welding iron head

You need this done-no problem.
by vortecpro
Mon Jun 20, 2022 9:00 am
Forum: Engine Tech
Topic: Closed chamber BBC heads
Replies: 12
Views: 765

Re: Closed chamber BBC heads

Those heads with there stock 2.06” intake valve should flow at least 245 cfm to 250 cfm @.600” lift. This should make you 475 Hp . If your doing the porting work yourself then be sure to look at some of the better detailed porting videos on YouTube that you can find. You should have the intake and ...
by vortecpro
Mon May 30, 2022 9:54 am
Forum: Engine Tech
Topic: Vortec Head 350 Track Testing
Replies: 6
Views: 602

Re: Vortec Head 350 Track Testing

It won't let me post a video, but here are the time slips Run # 1. 60. 1.486 330. 4.701 660. 7.45 @ 87.34 1320. 12.309 @ 93.56 Run #2. 60. 1.3732 330. 4.6449 660. 7.421 @ 84.87 1320. 12.391 @ 91.58 Run # 3 no chip 60. 1.404 330. 4.307 660. 6.814 @ 97.61 1320. 11.836 @ 74.25 Consistency is not our st...
by vortecpro
Sun May 29, 2022 2:27 pm
Forum: Engine Tech
Topic: Vortec Head 350 Track Testing
Replies: 6
Views: 602

Re: Vortec Head 350 Track Testing

The Vortec heads are pretty good for sure, my best so far with a mild bowl and chamber work went, 1.48 60ft 6.86 1/8 mile' 96mph On a 406. That's a great 60' time and I bet the car would be quicker with less gear as I found with my Vortec combo. Nice numbers for you guys. What makes it quicker is p...
by vortecpro
Sun May 29, 2022 7:49 am
Forum: Engine Tech
Topic: Vortec Head 350 Track Testing
Replies: 6
Views: 602

Vortec Head 350 Track Testing

My son recently got out to the track with his Camaro for some testing which I found interesting, especially his engine combination. He currently is running a 355 with unported 906 Vortec heads, intake is a Edelbrock Super Victor with a 750 Holley. Camshaft is a hyd flat tappet with 435/460 lift and ...
by vortecpro
Fri May 27, 2022 9:25 am
Forum: Engine Tech
Topic: 2.56 Gear, Stock Converter, 4100 Pounds, NA 11s?
Replies: 175
Views: 10964

Re: 2.56 Gear, Stock Converter, 4100 Pounds, NA 11s?

Grandma's Monte looking a little "sketchy"
by vortecpro
Fri May 20, 2022 5:07 am
Forum: Engine Tech
Topic: 2.56 Gear, Stock Converter, 4100 Pounds, NA 11s?
Replies: 175
Views: 10964

Re: 2.56 Gear, Stock Converter, 4100 Pounds, NA 11s?

My math shows 35 observed HP gain with no tuning, then theres the 3000 feet DA difference, so basically you picked up a minimum of 50 observed HP based on 1/8 mile MPH. I really feel the 228 @ .050 cam is the cork on the 510 inch engine, I hope its fuel or ignition that is holding you up, at the ver...