Chevelle Tech - View Profile: SWHEATON


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Showing Visitor Messages 1 to 10 of 31
  1. detailer39
    Aug 14th, 19 6:55 PM - permalink
    Hi Scott,

    I wanted to ask you some cooling questions for BBC.

  2. Wolfeman
    Mar 23rd, 17 8:52 PM - permalink
    Hi Scott,
    I have a 69 Chevelle that has a nice DeWitt 28" direct fit alum. radiator. Question is should I get the shroud for the 71-75 big block with HD cooling for it? Some say the stock 69 big block shroud doesn't cover the complete core? And some say that the 71-75 shroud for the 26" core covers better than the one for the 28" core? Iam confused? Oh by the way, I followed your recommendations on the AZ thermostat and clutch fan too. Thank You for your help.
  3. RHinkel764
    Dec 29th, 14 11:37 AM - permalink
    Hey Scott. I've greatly enjoyed your posts and have followed along in the tuning and performance of my 68 SS 396 el camino. The tips on the cooling system worked perfectly. The quadrajet tuning and ignition timing threads are dead on correct. My stroked, roller cammed, ported 396 idles nicely at 800, no nozzle drips.

    But im tired of exhaust leaks on the headers and I'm ready to put the original manifolds back on. This car will probably never see the track nor 6000 rpm too often so I don't really care about any power loss. The engine builder did use new ARP head bolts though and your posts suggest that I may have fittment problems. My headers did, and I did grind the flanges. Will my stock manifolds require grinding too or will just a simple gasket work in your experience. If so, which one would you suggest?

    Thanks for sharing all your great info. My 68 runs great with a lot of thanks to your advice.

  4. forever young
    Mar 12th, 14 8:02 PM - permalink
    forever young
    Scott, it has been a long time since we chatted, but here's where I am at. The car is completed. The paint came out near flawless and the interior the same. I had Bob Bush from Yorktown do my startup and with that Voodoo 60203 it sounds outstanding. Tomorrow night I am doing the 1st oil change on my startup 3 hour old oils. I am using the high ZZDP Summit oil. Is there a zinc additive I should be using with this? I am very eager to get it out on the road.
  5. Joer5000
    Jan 20th, 14 9:27 PM - permalink
    Scott i do have one issue you might have some insight on, after running the car about 20 minutes it will increase the idle from 950 to about 1200-1300 rpm. I notice the temp goes to 200* when the idle is up,, then it goes back down after driving it 10 minutes back to 180*. what would cause it to do that?
  6. Joer5000
    Jan 14th, 14 7:19 PM - permalink
    Scott, its Joe down in Phoenix with the 57 Chevy, I wanted to tell you that my motor has been running 170-180 all winter (70 *) thats our cool winter Once i hooked up the vacuum advance and set the initial timing at 20* it has never gone above 203-205*. Setting the timing correctly is very important!
  7. 69396375hp
    Sep 4th, 13 8:09 AM - permalink
    Hello Scott, I have also owned my SS since 6-30-78. What are the advantages of drilling the stat & are there any disadvantages? What diameter hole is drilled? I was told by a former Yenko mechanic that an engine must reach the proper temp. in order for it to operate correctly. This relates to the charts posted by Dale & Derrik. This is also why I had the high flow impeller removed from the H2O pump & the correct one installed. I was told that the high flow impeller circulates coolant to quickly & reduces the required operating temp. I purchased the 15356 stat but need to decide weather or not to install it. Any more advice would be greatly appreciated. Rocco
  8. 70 nialator
    May 26th, 13 11:23 PM - permalink
    70 nialator
    Scott, I know you know me - Getting ready to install the aluminum heads and I noticed my water pump is weeping a little so I’m going to replace it while I have thing s apart. 350 SBC …. Recommendations sir?
  9. 66550
    Sep 17th, 12 11:42 PM - permalink
    Scott: I've enjoyed reading your posts about cooling - you really know what you are doing! Most of the info seems to be about BBC and 68+ Chevelles. But I have a 1967 Chevelle with a 6cyl and I'm building a 400 SBC to drop into it. Will your usual recommendation of the 772 fan + factory type shroud + 2747 Hayden fan clutch work for my SBC set up? I'm worried about clearance between the fan and radiator. Also what about the diameter of the fan...will it fit inside the factory SBC shroud? or do I need the BBC shroud for the 772 fan? Also, which thermostat temp rating should I try first and what do you mean by drilling holes in thermostat - how many, what size, etc? Sorry for all the questions. Thank you!
  10. ba339
    Sep 12th, 12 5:34 PM - permalink
    Could you help me with a 1967 impala Ss with 396 cooling?

  About Me

  • About SWHEATON
    Piston Factor
    Photo Link
  • Signature
    1969 CHEVELLE SS396,ORIGINAL #'S MATCH,GOT IN 1978,(In 2001 rblt/bored original 396 .030 to 402)/M20/12BOLT/3:31'S
    2002 MAXIMA (DAILY DRIVER/1 owner,GOT 3/2013 w-44k miles)
    2009 HD ELECTRAGLIDE CLASSIC ULTRA (GOT 11/14 W-9,700 miles)


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Visitor Messages
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  • Last Activity: Jun 24th, 16 12:50 AM
  • Join Date: Jun 11th, 02
  • Referrals: 2


Showing Friends 1 to 10 of 11


Jul 12th, 17
12:36 AM - Not2Fast mentioned SWHEATON in post Re: Cooling 101/setup that keeps old school bbc/sbc motors nice & cool set up....thanks SWHEATON :thumbsup:


Aug 8th, 18
12:14 PM - ChevJerico quoted SWHEATON in post Adjusting a Fan Clutch
Many of us have/had overheati...
Jan 21st, 17
6:44 PM - Stokerboats quoted SWHEATON in post Re: Negative experiences with the ZZ502?
Jun 16th, 16
7:08 PM - SWHEATON quoted 70GS455 in post Re: To all the flat tappet Comp Cams haters
The lower rocker ratio engin...
Jun 15th, 16
12:59 AM - SWHEATON quoted drptop70ss in post Re: oring seals needed with viton valve seals or no? ...
Jun 13th, 16
1:48 PM - SWHEATON quoted Jim_66SS in post Re: Back @ my timing/VC issues, what do you think?
I got started again after my ...
12:07 AM - SWHEATON quoted Jim_66SS in post Re: Back @ my timing/VC issues, what do you think?
Well after a long winter I am...
Jun 1st, 16
9:35 PM - Stokerboats quoted SWHEATON in post Re: Newbie Concerns about Flat Tappit Break in
================ IT WAS ASS...
3:33 PM - SWHEATON quoted tucson67ss in post Re: Newbie Concerns about Flat Tappit Break in
Couldn't agree more about the s...
Mar 18th, 16
4:21 AM - SWHEATON quoted VORTECPRO in post Re: Lost one on the break in today...
I'm all about using your data,...
3:55 AM - SWHEATON quoted Roadknee in post Re: Lost one on the break in today...
I helped a friend rebuild his...
Mar 12th, 16
1:08 AM - SWHEATON quoted Indiansprings in post Re: Mark Jones 496
About 2 years ago I had Mark build...
12:51 AM - SWHEATON quoted 1968 hot rod in post Re: Idle Help Please
Low vac is normal with a cam like...
Feb 13th, 16
2:52 AM - SWHEATON quoted CDN SS in post Re: Engine pinging
What happens under lite loa...
2:43 AM - SWHEATON quoted charbilly2001 in post Re: Engine pinging
[QUOTE=SWHEATON;8555282]If the mot...
Feb 12th, 16
10:54 AM - charbilly2001 quoted SWHEATON in post Re: Engine pinging
If the motors running well ...
2:21 AM - SWHEATON quoted tucson67ss in post Re: Timing
At 3000 RPM the centrifugal for...
1:55 AM - SWHEATON quoted Bradco in post Re: Engine pinging
my engine after it is warme...
Feb 6th, 16
2:30 AM - SWHEATON quoted Stu1 in post Re: Installing new rings on used bores, no hone?
I have seen lots of infor...
Jan 26th, 16
3:04 PM - 1966_L78 quoted SWHEATON in post Re: Rock-auto doscount code
HI GUYS/GALS (?) . Just th...
Jan 14th, 16
10:28 PM - SWHEATON quoted smithtc in post Re: Carb Recommendation or Guidance
'69 SS 350 Camaro with a 4 s...
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