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#41
12-07-2019, 04:44 PM
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Great build here and hopefully some track results eventually
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Chris D 69 GTO Liberty Blue/dark blue 467, 850 Holley, T2, Edelbrock Dport 310cfm w Ram Air manifolds, HFT 245/251D .561/.594L, T400, 9" w 3.50s 3905lbs 11.59@ 114, 1.57/ 60' |
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#42
12-09-2019, 09:15 AM
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Happy accident to report in the spirit of accuracy, Geoff kindly pointed out to me that my carb is actually off of a 1965 421 based off of my tag number 3898S. The guy who had sold it to me told me it was off of a 1965 GTO, and i never checked it out - i ASSumed he was right. When i ordered the carb kit, i just gave Jon the numbers. My mistake for not verifying that, but i had intended to find a 421 carb to run anyway due to my camshaft and head work, figuring that would be a good match for the improved flow. Guess i can check that one off of the list.
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"I know just enough to keep me here, but not enough to get me out" |
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#43
12-11-2019, 03:30 PM
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That is some nice numbers and a good looking motor!!
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#44
12-11-2019, 10:08 PM
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Cardo,
thanks for the details on the build. Great numbers, Im trying to figure out where the SCR vs DCR numbers fall on these "stock/mild" builds Can you share: 1. what was your piston to deck clearance? 2. Did you deck the block? 3. Which head gasket # was used? Thanks Frank T |
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#45
12-12-2019, 08:20 AM
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Piston to deck is .003 down in the hole. Block was decked - had a very slight twist to the deck. Head gasket is the Butler SPM 19375 gaskets. Butler says they crush to approx .045. Hope this helps.
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"I know just enough to keep me here, but not enough to get me out" |
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#46
12-12-2019, 12:49 PM
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Thanks for posting the results of your build...it is close to what I am looking to do in my '64. Except I'll be running a Tri-Power, '64 GTO heads and plan on a 4" stroke. I would be very happy to end up with 1 hp/cid. Based on your engine I'm now much closer to an actual recipe.
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#47
12-12-2019, 05:12 PM
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Nice numbers. My 67 Firebird has a 65 389 as well. Here is my dyno run. As far as I know all original but it may have a different cam. Not sure.
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67 Firebird Convertible |
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#48
12-12-2019, 11:23 PM
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How does that cam idle? Is it close to a 068? Have fun with that hot 389, I'd like to do that someday.. Enjoy and thanks for posting.
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#49
12-13-2019, 11:00 AM
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Sounds like a nice setup Cardo. A really sweet cruiser...but I think your cam specs out to 219/227 @ .050 lift (you gave the total duration and listed it "@ 050" ", I was like "WHA?!?! =D )
Anyway, congrats on doing a great build. -b Ponchy
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#50
12-13-2019, 12:42 PM
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I don't know about the idle vs 068, i don't know that i've heard a 068 specifically to say. The idle is slightly lopey, but nothing crazy for sure. Tom Vaught's commment pointed out to me my error in the duration number, i did post the correct numbers somewhere after that. Thanks again all for the encouragement. Really looking forward to getting this out on the street, but it'll be a while to have the time to get it all together. Hoping for mid to late summer for a first drive. I still have to build the body too. http://forums.maxperformanceinc.com/...d.php?t=806153
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"I know just enough to keep me here, but not enough to get me out" |
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#51
12-14-2019, 09:41 AM
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You will be so happy you went conservative when your in the middle of city traffic with the family in the car.. I used to hate taking my family out with my car loping and loading up. What a pain in the a$$! I will never use the 041 cam again except to hold the back door open lol....
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#52
12-14-2019, 10:54 AM
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Quote:
I'm a "If-you-want-it-done-right-do-it-yourself" kinda guy, so when I saw that, I just looked up the cam and published the correction. Ponchy
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#53
12-14-2019, 12:50 PM
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No problem. I appreciate it. It needs to be right if anyone that wants to duplicate the build.
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"I know just enough to keep me here, but not enough to get me out" |
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#54
12-14-2019, 04:20 PM
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Every 068 I've ever heard idles dead smooth.
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---------------------------- '72 Formula 400 Lucerne Blue, Blue Deluxe interior - My first car! '73 Firebird 350/4-speed Black on Black, mix & match. |
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#55
01-09-2022, 01:39 PM
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Still learning about Pontiac engines. The 76 heads you used, are those stock for that engine or off another year?
Thanks. |
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#56
01-09-2022, 01:58 PM
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They're stock. The engine came out of a 65 Catalina. It was the 325 hp version. They're almost identical to the 77 heads that would have been on a GTO... in fact i don't really know or think that there was any difference. I am getting ready to build a duplicate of this motor, but since Dave at SD Performance isn't doing cast iron heads any more, I will have Kauffman do this next set.
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"I know just enough to keep me here, but not enough to get me out" |
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#57
01-09-2022, 03:02 PM
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ONE WAY OR THE OTHER, HE HAS A REALLY NICE STREET ENGINE FOR CRUISING.
Happy New Year! Tom V.
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"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
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#58
01-09-2022, 05:12 PM
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Sweet!
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Let's make welfare as hard to get as Veterans benefits! |
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#59
01-09-2022, 06:31 PM
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Happy New Year Tom! Hope you're staying warm this winter! I got to put about 200 miles on this engine so far, and it's great as a street engine. Absolutely no problems with drivability, no pinging, plenty of low end power. Idles great, and runs on pump gas. Had some fun with it in the driveway after I got it put together. https://www.youtube.com/watch?v=lTMnf3KjvzI
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"I know just enough to keep me here, but not enough to get me out" |
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#60
01-10-2022, 02:28 AM
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Quote:
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Anybody else on this planet campaign a M/T hemi Pontiac for eleven seasons? ... or has built a record breaking DOHC hemi four cylinder Pontiac? ... or has driven a couple laps of Nuerburgring with Tri-Power Pontiac power?(back in 1967) |
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