64StudebakerAvanti

let's not forget the expansion tank.

I have R4551, It has the BKV trim option with round knobs. I understand the BKV trim was where Stude phased in the running changes for 64 models.

Just anticipating, the exhaust manifolds are the same left, right as well. the passenger side should have longer studs to accommodate the heat riser.

left and right are the same.

There is a hole under the gas tank that seems to have no purpose. The partition between the tank and rear seat is sealed with dumdum. Perhaps the dumdum is cracked, brittle or otherwise compromised allowing fumes to enter.

If you work with Meyer's, make sure you get price first. He was able to supply me with some rears, but since we did not discuss price ahead of time, I just about had a heart attack when I got the charge.

links are a good thing to post.

For some other ideas, here is a link for 81 Camaro. Should be similar for 81 Avanti. https://www.google.com/search?q=check+engine+light+ignition+switch+off+81+camaro&sca_esv=cc0212b912e0ef78&ei=3ql-afOrGfKekvQPiaCbUQ&oq=check+engine+light+ignition+switch+off+81&gs_lp=EhNtb2JpbGUtZ3dzLXdpei1zZXJwIiljaGVjayBlbmdpbmUgbGlnaHQgaWduaXRpb24gc3dpdGNoIG9mZiA4MSoCCAEyBRAhGKABMgUQIRigATIFECEYoAEyBRAhGKABMgUQIRigATIIEAAYgAQYogRIhSdQlgpYsBNwAXgBkAEAmAHcAaABnwSqAQUwLjIuMbgBAcgBAPgBAZgCBKACtQTCAgoQABiwAxjWBBhHwgIFECEYqwLCAgUQIRifBZgDAIgGAZAGCJIHBTEuMi4xoAexErIHBTAuMi4xuAeuBMIHBTAuMS4zyAcMgAgA&sclient=mobile-gws-wiz-serp#lfId=ChxjMe

I have seen alternator warning lights come on dimly after ignition switch is off if the diodes are bad. Could the alternator be wired into the check engine light?

Bob Ziff at Avanti parts and Restorations is showing new replacement pistons for $155 each. https://avantiparts.biz/cylinder-assembly-front-disk-brake/

If your caliper pistons are in good condition, why sleeve? It would make more sense just to rebuild by replacing the seals etc. Otherwise, the Cobalt replacement cylinders seem to be a good option. https://mossmotors.com/8777-2-cp-cobalt-brake-cylinder-axle-set?gclid=EAIaIQobChMIzaqmz_-s_wIVgZqGCh2kYwuqEAQYFSABEgJSg_D_BwE#829=2405?utm_source=feed&utm_medium=free&utm_campaign=shopping Sumitomo cylinders are over $250 each on parts geek. https://www.partsgeek.com/catalog/1963/jaguar/xke/brake/caliper_piston.html?brand=genuine The Turner brake conversion is another possibility allowing for relatively less expensive parts. Not sure what the Turner package consists of now, but when I purchased 20 years ago, Turners used Mustang rotors and GM calipers. Sleeving has gotten more expensive. Apple hydraulics now wants $135/cylinders for sleeve and $165 for rebuild. https://www.applehydraulicsonline.com/collections/dunlop/products/copy-of-jaguar-dunlop-caliper-cylinder-sleeved-and-rebuilt-1

Wimauma is about 20 miles south of Tampa.

Bill, This looks to be what you need. Don't know about condition, but it spins. Yours if you want it. I am in Wimauma.

Not sure aluminum is good material for exhaust manifolds. According to sources on the internet, pure Aluminum melts around 1200° with most alloys melting sooner. Exhaust manifolds can reach 1200° - 1800° under hard acceleration, extended high speed driving. Not much room for error.