502ci 525HP with Carb and Ign
#1
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Joined: Mar 2003
Posts: 3,073
Likes: 79
From: Fort Worth, TX
502ci 525HP
Started life as a 502/502 but has been run marine since new. I acquired and rebuilt early this year. Rebuilt by Keith Scroggins in OKC (known marine builder)
New bearings, rings, oil pump, timing set.
Heads were rebuilt with all new valves (stainless/inconel), valve springs and comp 1.7 RA's.
Cam is very close to a 525EFI cam in an Isky grind on 114lsa.
GM Perf Heads and Intake
I have a Victor Jr. Single plane I will include in sale
Carb is QF Marine 850
Ignition is Thunderbolt with HP module
I have run it for no more than 15 hours this season while I worked on the setup on my build. It pushed my 27 Excalibur to 80mph, so it is making some decent power. I can send a video of the last trip out in the boat.
I'd prefer to sell with Carb and Ignition as I plan to reuse everything else.
Stainless Marine Manifolds and Straight Dry Tails could be included for additional money.
$7,500

Started life as a 502/502 but has been run marine since new. I acquired and rebuilt early this year. Rebuilt by Keith Scroggins in OKC (known marine builder)
New bearings, rings, oil pump, timing set.
Heads were rebuilt with all new valves (stainless/inconel), valve springs and comp 1.7 RA's.
Cam is very close to a 525EFI cam in an Isky grind on 114lsa.
GM Perf Heads and Intake
I have a Victor Jr. Single plane I will include in sale
Carb is QF Marine 850
Ignition is Thunderbolt with HP module
I have run it for no more than 15 hours this season while I worked on the setup on my build. It pushed my 27 Excalibur to 80mph, so it is making some decent power. I can send a video of the last trip out in the boat.
I'd prefer to sell with Carb and Ignition as I plan to reuse everything else.
Stainless Marine Manifolds and Straight Dry Tails could be included for additional money.
$7,500

#2
Thread Starter
Registered

Joined: Mar 2003
Posts: 3,073
Likes: 79
From: Fort Worth, TX
Last time this engine was run. If you're in need, I'll negotiate various options for the accessories.
http://www.youtube.com/watch?v=lFT-aZovsts
http://www.youtube.com/watch?v=lFT-aZovsts
Last edited by TxHawk; 12-10-2016 at 08:26 AM.
#5
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Registered

Joined: Mar 2003
Posts: 3,073
Likes: 79
From: Fort Worth, TX
New motor is together, I am about to start robbing the accessories from this one.
I am offering it from the air cleaner to the pan to include Thunderbolt ignition. Ill throw in the crossover too!
I am offering it from the air cleaner to the pan to include Thunderbolt ignition. Ill throw in the crossover too!





