1955 Chevrolet Q/SA Build - Page 4

Glenn Hayes · 02-21-2019, 10:49 PM

The car looks beautiful Lynn !

James Jeschke Jr · 05-14-2019, 04:49 AM

Lynn, that car is awesome! It’s great to see people still building them!

Lyn Smith · 08-12-2019, 07:43 PM

Started to collect parts for next years "new 265" build.Pistons came in the other day.I set one next to what I'm used to dealing with, a 455 Buick slug.LOL Don't have the blue 55 car anymore.Guy that loaned it to me wanted it back. So this winter I will be building my own 55 from the ground up for the P/SA and Q/SA wars next year when I'm not racing my Buick.LOL Will be getting the 55 shell inside and starting to rebuild the front suspension in a few weeks.Will keep you informed, as well on updates on engine build.

Lyn Smith · 09-08-2020, 09:07 AM

My good buddy Mike C and I are back to work 55 Q/SA project. The body I have needs some work as the roof was patched with a huge pc of fiberglass mat. When I took the windshield out, I noticed remnants of a old vinyl top. Probably put on in the 70s, or early 80s. Moisture under it caused the roof panel to rust very bad. I cut the roof panel off and cleaned the mounting surfaces, A 2 day job. We used 3M panel adhesive to mount the panel back on. I was very carefull not to damage the headliner, since it was in fairly good condition. Also pictured is the frame. I had it blasted, and powdered coated. There is a place about a hour north of me that will do that for $300. Heck of a deal. This week I plan on finishing up the floor,and trunk patching, and next week getting the rebuilt frame back under the body. I might add that the roof panel was a reproduction. It fit fairly good. We did need to do a little metal trimming on it at the A pillar.

Jerry Terry · 09-08-2020, 06:15 PM

Lyn, the 55 sounds like a lot of fun what does the 2dr sedan have to weigh for Q/SA ?

Jerry
Retired 3490 3492 STK SS SST

Dwight Southerland · 09-09-2020, 06:47 AM

Lyn Smith · 09-09-2020, 12:49 PM

When NHRA put the older cars back in the guide a few years back they raised the 1955 4bl HP from 180 to 200. It has been lowered some to 197. Needs to go further down, as the 55 265 has to use flat top pistons which means you have to use a cam with 230 degrees duration or less, or you will have valve to piston clearance problems. Mid way thru 1956 GM started building 265s with valve notches. They discontinued the over counter sales of the flat top piston about that time also. In the Jr Stocker days you could use the notched 265 pistons, but not now. Go figure.

Dwight Southerland · 09-10-2020, 07:39 AM

Find an OEM piston with notches, submit..

Lyn Smith · 09-12-2020, 10:30 AM

Dwight, I have talked to everyone at NHRA who would listen to get the notched piston okayed, but it always comes back No. I have the flat pistons,and the low duration cam purchased now so that is what I will run. Thanks for the suggestion though.

The ideaman · 09-21-2020, 09:43 AM

How much gear, 6.14's? Still have a powerglide?

02-21-2019, 10:49 PM	#31
Glenn Hayes Member Join Date: Feb 2009 Location: Weeki Wachee, Florida Posts: 348 Likes: 342 Liked 13 Times in 7 Posts	Re: 1955 Chevrolet Q/SA Build The car looks beautiful Lynn ! __________________ "Real Race Cars Have Tailgates"

05-14-2019, 04:49 AM	#32
James Jeschke Jr Junior Member Join Date: Jan 2013 Location: Pittsburgh Pa. Posts: 28 Likes: 6 Liked 12 Times in 5 Posts	Re: 1955 Chevrolet Q/SA Build Lynn, that car is awesome! It’s great to see people still building them! __________________ James Jeschke Jr. #1603 I/S

08-12-2019, 07:43 PM	#33
Lyn Smith Senior Member Join Date: Dec 2001 Location: Pontiac,il. Posts: 898 Likes: 78 Liked 151 Times in 50 Posts	Re: 1955 Chevrolet Q/SA Build Started to collect parts for next years "new 265" build.Pistons came in the other day.I set one next to what I'm used to dealing with, a 455 Buick slug.LOL Don't have the blue 55 car anymore.Guy that loaned it to me wanted it back. So this winter I will be building my own 55 from the ground up for the P/SA and Q/SA wars next year when I'm not racing my Buick.LOL Will be getting the 55 shell inside and starting to rebuild the front suspension in a few weeks.Will keep you informed, as well on updates on engine build. Attached Thumbnails

09-08-2020, 09:07 AM	#34
Lyn Smith Senior Member Join Date: Dec 2001 Location: Pontiac,il. Posts: 898 Likes: 78 Liked 151 Times in 50 Posts	Re: 1955 Chevrolet Q/SA Build My good buddy Mike C and I are back to work 55 Q/SA project. The body I have needs some work as the roof was patched with a huge pc of fiberglass mat. When I took the windshield out, I noticed remnants of a old vinyl top. Probably put on in the 70s, or early 80s. Moisture under it caused the roof panel to rust very bad. I cut the roof panel off and cleaned the mounting surfaces, A 2 day job. We used 3M panel adhesive to mount the panel back on. I was very carefull not to damage the headliner, since it was in fairly good condition. Also pictured is the frame. I had it blasted, and powdered coated. There is a place about a hour north of me that will do that for $300. Heck of a deal. This week I plan on finishing up the floor,and trunk patching, and next week getting the rebuilt frame back under the body. I might add that the roof panel was a reproduction. It fit fairly good. We did need to do a little metal trimming on it at the A pillar. Attached Thumbnails Last edited by Lyn Smith; 09-08-2020 at 09:12 AM.

09-08-2020, 06:15 PM	#35
Jerry Terry Member Join Date: Jul 2003 Location: Cincinnati Posts: 495 Likes: 2,353 Liked 230 Times in 63 Posts	Re: 1955 Chevrolet Q/SA Build Lyn, the 55 sounds like a lot of fun what does the 2dr sedan have to weigh for Q/SA ? Jerry Retired 3490 3492 STK SS SST

09-09-2020, 06:47 AM	#36
Dwight Southerland VIP Member Join Date: Dec 2001 Location: Arkansas - In the middle of everything. Posts: 1,885 Likes: 21 Liked 354 Times in 94 Posts	Re: 1955 Chevrolet Q/SA Build __________________

09-09-2020, 12:49 PM	#37
Lyn Smith Senior Member Join Date: Dec 2001 Location: Pontiac,il. Posts: 898 Likes: 78 Liked 151 Times in 50 Posts	Re: 1955 Chevrolet Q/SA Build When NHRA put the older cars back in the guide a few years back they raised the 1955 4bl HP from 180 to 200. It has been lowered some to 197. Needs to go further down, as the 55 265 has to use flat top pistons which means you have to use a cam with 230 degrees duration or less, or you will have valve to piston clearance problems. Mid way thru 1956 GM started building 265s with valve notches. They discontinued the over counter sales of the flat top piston about that time also. In the Jr Stocker days you could use the notched 265 pistons, but not now. Go figure.

09-10-2020, 07:39 AM	#38
Dwight Southerland VIP Member Join Date: Dec 2001 Location: Arkansas - In the middle of everything. Posts: 1,885 Likes: 21 Liked 354 Times in 94 Posts	Re: 1955 Chevrolet Q/SA Build Find an OEM piston with notches, submit.. __________________

09-12-2020, 10:30 AM	#39
Lyn Smith Senior Member Join Date: Dec 2001 Location: Pontiac,il. Posts: 898 Likes: 78 Liked 151 Times in 50 Posts	Re: 1955 Chevrolet Q/SA Build Dwight, I have talked to everyone at NHRA who would listen to get the notched piston okayed, but it always comes back No. I have the flat pistons,and the low duration cam purchased now so that is what I will run. Thanks for the suggestion though. Last edited by Lyn Smith; 09-12-2020 at 10:42 AM.

09-21-2020, 09:43 AM	#40
The ideaman Junior Member Join Date: Oct 2015 Posts: 5 Likes: 8 Liked 1 Time in 1 Post	Re: 1955 Chevrolet Q/SA Build How much gear, 6.14's? Still have a powerglide?

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