062 Vortec Head Test a Success Car goes 10.92
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062 Vortec Head Test a Success Car goes 10.92
After running low 11's with my pump gas 358, I decided to pull a quick one and put the 406 test engine in with the 062 Vortec heads I reworked. They were mildly ported and have some epoxy in places but still retain the stock valve size. For this test I was going to run the GM Performance dual plane but gut instinct said try the ported SV that's made for the Vortec's. Well I am glad I did and here is the first run off the trailer.
1st. run, 11.02@120 mph 1.49 60ft.
2nd run, Changed to a 50% underdrive pulley on the crank
10.92@119.67 mph with a 1.48 60ft. 1/8 mile was 6.86!!
Ran a few more runs all in the high tens except for the last run and it rattled the tires so that was it for me. I am truly blown away with this combo and this is with the Cyclone $59 headers 1 5/8" as my Hooker S/C will not seal at the ports. I feel like I have a Vortecpro engine in my car LOL. Honestly the car felt like I put a 125hp shot on it.
It was a fun night.
1st. run, 11.02@120 mph 1.49 60ft.
2nd run, Changed to a 50% underdrive pulley on the crank
10.92@119.67 mph with a 1.48 60ft. 1/8 mile was 6.86!!
Ran a few more runs all in the high tens except for the last run and it rattled the tires so that was it for me. I am truly blown away with this combo and this is with the Cyclone $59 headers 1 5/8" as my Hooker S/C will not seal at the ports. I feel like I have a Vortecpro engine in my car LOL. Honestly the car felt like I put a 125hp shot on it.
It was a fun night.
Re: 062 Vortec Head Test a Success Car goes 10.92
Agree, they're good heads. Just wish we could find enough used Vortec heads which aren't cracked. Last week, my machinist threw out ten in a row.
Jack Vines
Studebaker-Packard V8 Limited
Obsolete Engineering
Studebaker-Packard V8 Limited
Obsolete Engineering
Re: 062 Vortec Head Test a Success Car goes 10.92
When I bought the 062's I only wanted the Crane rocker he had but nope have to buy it all he said. So for $100 I took the heads and rockers, funny thing is, I never used the rockers but I sure like the heads.
Re: 062 Vortec Head Test a Success Car goes 10.92
Care to share the rest of the combination? While I like the Vortecs and have run them as well as the aftermarket versions (RHS Pro Torker) I couldn't hope to achieve that performance with the street platform I have. Given that's only 355 CID.
Just the same , well done.
I sold my original Vortecs, fully machined for 500 bucks. Guy that bought them was a performance shop owner and he gave them a quick crack check and handed me the cash. Got the Comp 26918 springs as well. Those heads were high mileage too and had run a 240 degrees across half the country once towing a trailer behind the IROC!
True story.
Just the same , well done.
I sold my original Vortecs, fully machined for 500 bucks. Guy that bought them was a performance shop owner and he gave them a quick crack check and handed me the cash. Got the Comp 26918 springs as well. Those heads were high mileage too and had run a 240 degrees across half the country once towing a trailer behind the IROC!
True story.
Re: 062 Vortec Head Test a Success Car goes 10.92
Thats what happens when you dont put the typically recommended 220cc heads with 2.1 valves and 93% throats on your combo, your probably around 180-185 cc and shifting 6-6500, welcome to matching velocity needs to cubic consumption
Tom
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Re: 062 Vortec Head Test a Success Car goes 10.92
If you do turn up a set that is not cracked and there is a cryogenic treating service close enough to you then get them treated before maching and then they will not crack on you !
You can cut a man's tongue from his mouth, but that does not mean he’s a liar, it just shows that you fear the truth he might speak about you!
Re: 062 Vortec Head Test a Success Car goes 10.92
FWIW, we look for the truck and 1-ton van heads which came with hard seats installed. They're almost never cracked.
Jack Vines
Studebaker-Packard V8 Limited
Obsolete Engineering
Studebaker-Packard V8 Limited
Obsolete Engineering
Re: 062 Vortec Head Test a Success Car goes 10.92
Car is an 80 Camaro that is a .030 400 SBskinny z wrote: ↑Thu Aug 06, 2020 7:05 pm Care to share the rest of the combination? While I like the Vortecs and have run them as well as the aftermarket versions (RHS Pro Torker) I couldn't hope to achieve that performance with the street platform I have. Given that's only 355 CID.
Just the same , well done.
I sold my original Vortecs, fully machined for 500 bucks. Guy that bought them was a performance shop owner and he gave them a quick crack check and handed me the cash. Got the Comp 26918 springs as well. Those heads were high mileage too and had run a 240 degrees across half the country once towing a trailer behind the IROC!
True story.
Flat top pistons, 5.7 GM rods with ARP bolts
Cast GM crank, 4 bolt main
Elgin 1165P Hyd cam
Edelbrock SV 2913 Ported
850 Mighty Demon A/D booster carb
MSD locked in distributor and blaster 2 coil
Turbo 400 with a Jeg's XHD 10" converter that flashes to 4100 stall
4.10 gear on 30" slicks
Re: 062 Vortec Head Test a Success Car goes 10.92
I can see why it's quick. (The cast crank is a little frightening though!)1980RS wrote: ↑Sat Aug 08, 2020 1:13 am Car is an 80 Camaro that is a .030 400 SB
Flat top pistons, 5.7 GM rods with ARP bolts
Cast GM crank, 4 bolt main
Elgin 1165P Hyd cam
Edelbrock SV 2913 Ported
850 Mighty Demon A/D booster carb
MSD locked in distributor and blaster 2 coil
Turbo 400 with a Jeg's XHD 10" converter that flashes to 4100 stall
4.10 gear on 30" slicks
Thanks for the info.
Re: 062 Vortec Head Test a Success Car goes 10.92
Nice running combo. Really surprised that the off the shelf converter is working so well.
What does the car weigh?
What does the car weigh?
Re: 062 Vortec Head Test a Success Car goes 10.92
Around 3420 without me in it, so close to 3600 lbs.
Re: 062 Vortec Head Test a Success Car goes 10.92
So what causes the cracking? I have a set of over-the-counter GM 062s on my 355 (made in '08 or so). The water temp never goes over 200 deg, and I have a good tune and free-flowing exhaust. Do I still need to worry about these developing cracks someday?