Chevelle Tech - View Profile: SWHEATON
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Showing Visitor Messages 1 to 10 of 29
  1. RHinkel764
    Dec 29th, 14 10:37 AM
    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.

  2. forever young
    Mar 12th, 14 7:02 PM
    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.
  3. Joer5000
    Jan 20th, 14 8:27 PM
    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?
  4. Joer5000
    Jan 14th, 14 6:19 PM
    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!
  5. 69396375hp
    Sep 4th, 13 7:09 AM
    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
  6. 70 nialator
    May 26th, 13 10:23 PM
    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?
  7. Chvlle
    Sep 17th, 12 10:42 PM
    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!
  8. ba339
    Sep 12th, 12 4:34 PM
    Could you help me with a 1967 impala Ss with 396 cooling?
  9. duanec
    Jun 6th, 12 12:05 PM
    Scott PLEASE send me the cam installation tips you have. My 70 just ate a cam that had less than 1500 miles on it. It was installed by someone else but the number 6 cylinder lobe is GONE. Thanks, Duane : dclausen at

    BTW,if your doing a new flat tappet cam install let me if your interested in info i wrote up to assist in assembly/proper lubes and oils to use/run for assembly-breakin-post breakin/along with a list of oils & oil additives avail today that have decent zddp for cam/lifter breakin,if yes send me your email address and iwill send it to you.
  10. Dan70
    Jan 17th, 12 9:49 PM
    Hello Scott, I have a question about engines and oil I'd like to discuss with you if possible. This isn't about flat tappet, which I've read so much about. I really have learned more about oil than I ever thought I would need to in your posts and it is all very interesting and appreciated that you have done so much homework on this subject for the rest of us to learn from.
    I am looking forward to talking with you.

About Me

  • About SWHEATON
    Piston Factor
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    1969 CHEVELLE SS396,ORIGINAL #'S MATCH,GOT IN 1978,(In 2001 rblt/bored original 396 .030 to 402)/M20/12BOLT/3:31'S
    2006 YAMAHA 1700 ROADSTAR SILVERADO (1 owner ,GOT in 2009,4,700 miles/WK end fun)
    1977 KAWASAKI KZ1000 (AM ORIGINAL OWNER ,GOT IN 1977,NOW has 29k miles/WK end fun)
    2002 MAXIMA (DAILY DRIVER/1 owner,GOT 3/2013 w-44k miles)


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  • Last Activity: May 20th, 15 1:05 PM
  • Join Date: Jun 11th, 02
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