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  #16 (permalink)  
Old 04-24-2013, 03:08 PM
V8 Super Beetle's Avatar
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Besides, an analog FM stereo is nice to me. Don't need much more.
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  #17 (permalink)  
Old 04-24-2013, 03:12 PM
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Best iron head for the buck is the RHS torquer. RHS stopped making them for some reason and they're very hard to find in the market, even used. Here is a source, Amazon. The brand is shown as CompCams, because Racing Head Service was/is part of Comp in Memphis. It would seem to me that Comp is leaking the remaining inventory out through different sources like Amazon. Same thing was done a couple of years ago with Weiand 8016 Stealth intakes. I listed the last 3 known to man on Amazon on this forum and they were gone in a day or so.
Part #12410 would be my first choice for a torquer motor.....170cc intake runners, 64cc chambers, bronze guides 2.02"/1.60" valves. Sold bare under this part number, no valves, springs, etc. I've looked everywhere on the web and can't find any new old stock. Can't even find any used.
Part #12407 would be my second choice, same head with 1.94"/1.60" valves. Can't find 'em. It's like they vaporized off the planet.
Third choice would be these 12403 units. I'm not sure if they're straight plug or angled plug, but I'm pretty sure they're cast iron guides. I know they're 67cc chambers, 170cc intake runners, 2.02"/1.60" valves, sold bare.

Several years ago when I was doing a lot of DynoSims, these torquers consistently made the best torque on a 355, better than L31's and you don't have to jump through hoops with springs, retainers, vortec intake manifolds, center bolt covers, etc.
Comp Cams 12403 Pro Torker Small Block Cylinder Head : Amazon.com : Automotive Comp Cams 12403 Pro Torker Small Block Cylinder Head : Amazon.com : Automotive

Competition Products sells a "head improvement kit".....
http://www.competitionproducts.com/H...ctinfo/851226/

If you're interested, I'll run a Sim using Bogie's cam choice.

Here are the numbers I would use for a Sim.....
0.100" 77 65
0.200" 155 113
0.300" 186 144
0.400" 230 167
0.500" 241 175

If anyone has numbers that they think are more valid than these for these heads, please post them or direct me to the source of your numbers.

Last edited by techinspector1; 04-24-2013 at 03:22 PM.
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  #18 (permalink)  
Old 04-24-2013, 03:14 PM
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Leave it OEM stock,, get a trailer hitch and use it to tow /trailer your racy car to the track.
There is enough trunk for all your tools and slicks etc.
It makes for a good towing vehicle. Stock. Not everything has to go fast(er).

Get a grip.
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Old 04-24-2013, 03:18 PM
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Originally Posted by F-BIRD'88 View Post
Leave it OEM stock,, get a trailer hitch and use it to tow /trailer your racy car to the track.
There is enough trunk for all your tools and slicks etc.
It makes for a good towing vehicle. Stock. Not everything has to go fast(er).

Get a grip.
That's true.
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  #20 (permalink)  
Old 04-24-2013, 03:19 PM
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Quote:
Originally Posted by techinspector1 View Post
Best iron head for the buck is the RHS torquer. RHS stopped making them for some reason and they're very hard to find in the market, even used. Here is a source, Amazon. The brand is shown as CompCams, because Racing Head Service was/is part of Comp in Memphis. It would seem to me that Comp is leaking the remaining inventory out through different sources like Amazon. Same thing was done a couple of years ago with Weiand 8016 Stealth intakes. I listed the last 3 known to man on Amazon on this forum and they were gone in a day or so.
Part #12410 would be my first choice for a torquer motor.....170cc intake runners, 64cc chambers, bronze guides 2.02"/1.60" valves. Sold bare under this part number, no valves, springs, etc. I've looked everywhere on the web and can't find any new old stock. Can't even find any used.
Part #12407 would be my second choice, same head with 1.94"/1.60" valves. Can't find 'em. It's like they vaporized off the planet.
Third choice would be these 12403 units. I'm not sure if they're straight plug or angled plug, but I'm pretty sure they're cast iron guides. I know they're 67cc chambers, 170cc intake runners, 2.02"/1.60" valves, sold bare.

Several years ago when I was doing a lot of DynoSims, these torquers consistently made the best torque on a 355, better than L31's and you don't have to jump through hoops with springs, retainers, vortec intake manifolds, center bolt covers, etc.
Comp Cams 12403 Pro Torker Small Block Cylinder Head : Amazon.com : Automotive

If you're interested, I'll run a Sim using Bogie's cam choice.

Here are the numbers I would use for a Sim.....
0.100" 77 65
0.200" 155 113
0.300" 186 144
0.400" 230 167
0.500" 241 175

If anyone has numbers that they think are more valid than these for these heads, please post them or direct me to the source of your numbers.
Thanks for the suggestion! Sounds like a great head for the buck.

Please do. That would be great!
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  #21 (permalink)  
Old 04-24-2013, 04:00 PM
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Quote:
Originally Posted by V8 Super Beetle View Post
Thanks gang.

I'm rethinking my head selection. Are AFR's reliable with the XE262? What kind of HP numbers could I expect with 8.5:1 and would it run on 87 octane?

http://www.summitracing.com/parts/afr-0911
I'm certain that AFR 0916's would make more hp and torque than any other heads you could bolt onto a street motor 355 block. That's why they come a little dear on the price. Over the years, I have come to trust and appreciate the flow numbers that AFR publishes also. I think they're REAL in the way they get to the numbers, using common sense pipe sizes for the flow bench tests and so forth.

On the other hand, if a fellow wanted to put an iron-headed 355 together, I can't think of a better head than a RHS Pro-Torquer. RHS doesn't make them any more, but a few NOS heads are finding their way to the market through CompCams distribution channels. Here is the part number 12403 on Amazon. I think they are 170cc intake runners, 67cc chambers, 2.02"/1.60" seats and cast iron guides. Not sure if they are straight or angle plugs.
Comp Cams 12403 Pro Torker Small Block Cylinder Head : Amazon.com : Automotive Comp Cams 12403 Pro Torker Small Block Cylinder Head : Amazon.com : Automotive

Competition Products makes a "head improvement kit" to fill the heads with....
Head Improvement Kit, Chev SB, 2.02-1.60" Valve, Hyd/Mech FT - Competition Products

So, for roughly $630 bucks plus freight, a fellow could have a dandy set of cast iron heads that will make more torque on a 355 Chevy than any other cast iron heads that I have ever dynosimmed. Pay attention!!!! These heads will make great torque, but they are not horsepower heads. Don't expect to win any races with them. They will work well with a very mild cam on a daily driver/grocery getter. If you use a modest static compression ratio matched to a camshaft that will work well with a stock torque converter, these heads would be the schitz.
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  #22 (permalink)  
Old 04-24-2013, 08:09 PM
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350 HP will put that car into the 12.s with the 4.10 gears and suspension work with grippy tires.you will need a good converter to launch the car hard
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  #23 (permalink)  
Old 04-24-2013, 08:18 PM
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Don't know why my posts are doubling up? Sorry.
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  #24 (permalink)  
Old 04-25-2013, 08:39 AM
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Thanks, Tech! Sounds great. Looks like Speedway Motors has them for sale too, complete.

Garage Sale - RHS Pro Torker Vortec 170cc Iron Cylinder Heads, Complete - Speedway Motors, America's Oldest Speed Shop
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  #25 (permalink)  
Old 04-25-2013, 08:50 AM
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I'm assuming those heads need a vortec specific intake?
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Old 04-25-2013, 09:01 AM
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Quote:
Originally Posted by V8 Super Beetle View Post
I'm assuming those heads need a vortec specific intake?
They will take either Vortec or conventional, they are drilled for both.

Bogie
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  #27 (permalink)  
Old 04-25-2013, 09:03 AM
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Originally Posted by oldbogie View Post
They will take either Vortec or conventional, they are drilled for both.

Bogie
Thank you!
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