What Combo????????????? - Page 4

Mark Yacavone · 02-27-2017, 11:16 AM

Quote:

Originally Posted by Bruce Fulper

Not the '65 tri-power 389. It's still at 360 hp. Because they allowed the '62 318 hp tri-power down to 280 (H/SA) I've been requesting the '65 tri power to get within 10 hp of that. There's not enough difference in the two to shake a stick at. .007 more lift. Same carbs. 1.88 v/s 2.02 intake valve. That's it. Two years I've been trying. They won't budge on it. Don't feel real happy about building the car and giving them data for a year or two to prove it. But I gotta dream. The only '65 GTO tri power 4 speed in Stock.

Can't have too much variety, I guess.
Only room for Camaros now.

There's another way to go about this.
Bring it out and go slow. No heads up runs around in Div 7 now.
Love to see it.

Billy Nees · 02-27-2017, 11:21 AM

Quote:

Originally Posted by Mark Yacavone

Can't have too much variety, I guess.
Only room for Camaros now.

And, apparently, old Mopars!

Dwight Southerland · 02-27-2017, 01:46 PM

Quote:

Originally Posted by Bruce Fulper

Not the '65 tri-power 389. It's still at 360 hp. Because they allowed the '62 318 hp tri-power down to 280 (H/SA) I've been requesting the '65 tri power to get within 10 hp of that. There's not enough difference in the two to shake a stick at. .007 more lift. Same carbs. 1.88 v/s 2.02 intake valve. That's it. Two years I've been trying. They won't budge on it. Don't feel real happy about building the car and giving them data for a year or two to prove it. But I gotta dream. The only '65 GTO tri power 4 speed in Stock.

'66 389/335/300 is not bad. Uses the same head that was developed for the 421/376. 12.0:1 compression. 625 cfm AFB. Not a killer, but at least competitive.

James L Miller · 02-27-2017, 04:52 PM

Quote:

Originally Posted by Billy Nees

And, apparently, old Mopars!

Can someone get another intake approved for Billy? He said he had a one year only intake. I can sympathize with that. Hard to find one year only parts. Best of luck Billy.

Billy Nees · 02-27-2017, 05:22 PM

Don't worry James, I'll make due. I knew what I was getting into when I built the combo and I'll get by without any "outside help".

James L Miller · 02-27-2017, 09:01 PM

OK Billy. Just don't drag us all the way back to 1972. I can't find most of the pistons approved for the 273 2bbl combo (Badger, TRW, etc.), so I don't want to have to find the OEM pistons with the Chrysler part numbers on the tops. I've been looking for the factory iron intakes and no luck so far. A friend of mine has a 1965 4bbl 273 intake, but that would need the early heads with the funky intake bolt angle. It's hard to find parts for the old engines, especially the unpopular ones. I think everyone did what I did with my 273 2bbl intake and carb. Sent mine to the scrap yard when I put a 340 in my street Dart. I wish I had kept it now.

Billy Nees · 02-28-2017, 08:44 AM

Quote:

Originally Posted by James L Miller

It's hard to find parts for the old engines, especially the unpopular ones. I think everyone did what I did with my 273 2bbl intake and carb. Sent mine to the scrap yard when I put a 340 in my street Dart. I wish I had kept it now.

If only we knew then what we know now!
Oh well, too soon old, too late smart.

Chris Barnes · 03-04-2017, 01:23 AM

We ran this combination. The carb is the tiny 525 and there is no new carb replacement, if you look at a "modern" 525 AFB you will see why. The old ones aren't common but we found a couple and sent them off to Dean Oliver, who did a magnificent job making us one bad boy race carb. NHRA allowed us to use a later model Road Runner intake manifold, which we found to be way better than the '66 piece. We ran our '66 Belvedere in H/SA. It ran mid 11's and got eaten alive by more "affluent" racers in 350 Camaros but it seemed like the combination had a lot of potential. I think the new lifter rule would help at least a little bit.

02-27-2017, 05:22 PM	#35
Billy Nees VIP Member Join Date: Oct 2002 Location: On a hilltop in Pa. Posts: 4,489 Likes: 3,593 Liked 7,704 Times in 1,734 Posts	Re: What Combo????????????? Don't worry James, I'll make due. I knew what I was getting into when I built the combo and I'll get by without any "outside help". __________________ Billy Nees 1188 STK, SS I'm not spending 100K to win 2K

02-27-2017, 09:01 PM	#36
James L Miller Member Join Date: Apr 2005 Posts: 494 Likes: 6 Liked 25 Times in 16 Posts	Re: What Combo????????????? OK Billy. Just don't drag us all the way back to 1972. I can't find most of the pistons approved for the 273 2bbl combo (Badger, TRW, etc.), so I don't want to have to find the OEM pistons with the Chrysler part numbers on the tops. I've been looking for the factory iron intakes and no luck so far. A friend of mine has a 1965 4bbl 273 intake, but that would need the early heads with the funky intake bolt angle. It's hard to find parts for the old engines, especially the unpopular ones. I think everyone did what I did with my 273 2bbl intake and carb. Sent mine to the scrap yard when I put a 340 in my street Dart. I wish I had kept it now. __________________ Mopar 2 Ya!

03-04-2017, 01:23 AM	#38
Chris Barnes Member Join Date: Nov 2010 Posts: 139 Likes: 0 Liked 0 Times in 0 Posts	Re: What Combo????????????? We ran this combination. The carb is the tiny 525 and there is no new carb replacement, if you look at a "modern" 525 AFB you will see why. The old ones aren't common but we found a couple and sent them off to Dean Oliver, who did a magnificent job making us one bad boy race carb. NHRA allowed us to use a later model Road Runner intake manifold, which we found to be way better than the '66 piece. We ran our '66 Belvedere in H/SA. It ran mid 11's and got eaten alive by more "affluent" racers in 350 Camaros but it seemed like the combination had a lot of potential. I think the new lifter rule would help at least a little bit.