LS-6 468 BBC engine and misc.
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LS-6 468 BBC engine and misc.

  1. #1
    Cocoloco cocoloco's Avatar
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    Default LS-6 468 BBC engine and misc.

    Block is #3999289 4-Bolt Main O-ringed, Heads are #6272990 990 HI-Perf Open Chamber, TRW L2349 domed pistons floating, Edelbrock Torquer Manifold, Chrome Valve and Timing covers, Dual roller chain, LS-6 camshaft in great condition, Pan is pretty much a dust cover could salvage with minor welding of loose windage tray and Glenwood exhaust with Nicson turn downs. Nice harmonic balancer and flywheel. $2,500.00 if you rebuild it. $4,500.00 if I rebuild it. I will have it line bored, power honed, new chrome moly rings, new bearings and new cam bearings with rebuilding the heads. (the heads are not in need of a valve job but I will do it anyway) Puts you ahead a grand to do it yourself. Also a 67" x 11" fiberglass swim step and mounts (Nice) $75.00, 3" or 4" inlet optional to 4" exhaust outlet Rex Marine Stainless exhaust tips with flaps (xlnt cond) $80.00
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    Last edited by cocoloco; 06-24-2015 at 11:02 AM.

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  3. #2
    Cocoloco cocoloco's Avatar
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    Default Want to trade BBC...

    Bump. I will trade a torker with rebuilt 750 Holley Marine Carb on it for a std dual carb tunnel ram, polished unpolished or brand I don't care. I'm putting the 468 in my flat so its not for sale. I have nice 325 HP 396 with fresh small port heads, jet boat cam and lifters, chrome covers, pan and timing cover. $650.00. A pair of glenwood BBC marine exhaust that need machined with Nicson down turns on them. $120.00 I would have them machined but the shop here is so busy he can't get to them for a while. ITs like $25.00 to machine them. Also a 67" x 11" fiberglass swim step and mounts (Nice) $75.00, 3" or 4" inlet optional to 4" exhaust outlet Rex Marine Stainless exhaust tips with flaps (xlnt cond) $80.00[/QUOTE]
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  4. #3
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    Quote Originally Posted by cocoloco View Post
    Block is #3999289 4-Bolt Main O-ringed, Heads are #6272990 990 HI-Perf Open Chamber, TRW L2349 domed pistons floating, Edelbrock Torquer Manifold, Chrome Valve and Timing covers, Dual roller chain, LS-6 camshaft in great condition, Pan is pretty much a dust cover could salvage with minor welding of loose windage tray and Glenwood exhaust with Nicson turn downs. Nice harmonic balancer and flywheel. $2,500.00 if you rebuild it. $4,500.00 if I rebuild it. I will have it line bored, power honed, new chrome moly rings, new bearings and new cam bearings with rebuilding the heads. (the heads are not in need of a valve job but I will do it anyway) Puts you ahead a grand to do it yourself. Also a 67" x 11" fiberglass swim step and mounts (Nice) $75.00, 3" or 4" inlet optional to 4" exhaust outlet Rex Marine Stainless exhaust tips with flaps (xlnt cond) $80.00
    ls 6 had closed chamber heads,ls 7 had open chamber

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  6. #4
    Cocoloco cocoloco's Avatar
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    Default Heads

    Quote Originally Posted by $kaching$ View Post
    ls 6 had closed chamber heads,ls 7 had open chamber
    Yep this an LS-6 by casting number and someone put open chamber heads on it. You are correct. I bought a set of open chamber pistons for it this week. IF I sold it to some car resto guy and called it an LS-7 he would jump up and down because the number was wrong. I solved the whole problem by deciding to put it in my flat. Can't win for losin on these descriptions here. But I do appreciate everyone making sure nobody is deliberately trying to pass parts off as more than they are. Have a good one.
    Last edited by cocoloco; 07-03-2015 at 10:05 AM.

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    OK,, statement of fact here:

    GM made a marine LS6 that came with a low dome (8.8-1 compression) with 990 heads. When I worked at Gale Banks in the late 70's we used to buy them on pallet racks (at least 50 at a time) direct from GM. They got run with a cam change and turbo kit installed making their 650 hp verison, or some pulled apart and blueprinted with Arias pistons, Carrillo rods, and some head work by Kay Sissell, making up their 725 hp and 850 hp versions. I was running the parts department and verifying invoices, and recently an old customer gave me some of the old sales brochures. Shop labor at the time was quoted at $18 per hour! We also bought small numbers of LS5 engines that got used for the low power (550 hp) turbo engines

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    Quote Originally Posted by obnoxious001 View Post
    OK,, statement of fact here:

    GM made a marine LS6 that came with a low dome (8.8-1 compression) with 990 heads. When I worked at Gale Banks in the late 70's we used to buy them on pallet racks (at least 50 at a time) direct from GM. They got run with a cam change and turbo kit installed making their 650 hp verison, or some pulled apart and blueprinted with Arias pistons, Carrillo rods, and some head work by Kay Sissell, making up their 725 hp and 850 hp versions. I was running the parts department and verifying invoices, and recently an old customer gave me some of the old sales brochures. Shop labor at the time was quoted at $18 per hour! We also bought small numbers of LS5 engines that got used for the low power (550 hp) turbo engines
    18 $ an hour WOW

  9. #7
    Old Timer LeE ss13's Avatar
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    Default

    Quote Originally Posted by obnoxious001 View Post
    OK,, statement of fact here:

    GM made a marine LS6 that came with a low dome (8.8-1 compression) with 990 heads. When I worked at Gale Banks in the late 70's we used to buy them on pallet racks (at least 50 at a time) direct from GM. They got run with a cam change and turbo kit installed making their 650 hp verison, or some pulled apart and blueprinted with Arias pistons, Carrillo rods, and some head work by Kay Sissell, making up their 725 hp and 850 hp versions. I was running the parts department and verifying invoices, and recently an old customer gave me some of the old sales brochures. Shop labor at the time was quoted at $18 per hour! We also bought small numbers of LS5 engines that got used for the low power (550 hp) turbo engines
    Dang, does that bring back memories. I was there in 1977 when they were on San Gabriel Blvd, talking to Truit Beal. I think he worked there and I remember all the pallets with engines on them all around show room. Gale Banks power was the ticket then for Ski Racing.
    I don't know what I don't know because I forgot !!!

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  10. #8
    Some guy obnoxious001's Avatar
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    Quote Originally Posted by LeE ss13 View Post
    Dang, does that bring back memories. I was there in 1977 when they were on San Gabriel Blvd, talking to Truit Beal. I think he worked there and I remember all the pallets with engines on them all around show room. Gale Banks power was the ticket then for Ski Racing.
    By the time I worked for Gale, he had the 2nd shop on Commercial Ave, up the street and around the corner, and the location on San Gabriel was primarily office, R&D stuff, and projects like the Bonneville cars.

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    Default

    I'll second all that, being a "289" nad not a "512" block makes it a 71 or later LS-6, which as long as it was made after mid year 71 would have had 990's on it. The casting numbers are less sought after by the restoration guys, but still way cool to have a rec port, 4 bolt 454 that has the matched castings still. Not to mention that being one of the stronger, better 454 block castings.

  12. #10
    Cocoloco cocoloco's Avatar
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    Default Exactly Barry

    Quote Originally Posted by obnoxious001 View Post
    OK,, statement of fact here:

    GM made a marine LS6 that came with a low dome (8.8-1 compression) with 990 heads. When I worked at Gale Banks in the late 70's we used to buy them on pallet racks (at least 50 at a time) direct from GM. They got run with a cam change and turbo kit installed making their 650 hp verison, or some pulled apart and blueprinted with Arias pistons, Carrillo rods, and some head work by Kay Sissell, making up their 725 hp and 850 hp versions. I was running the parts department and verifying invoices, and recently an old customer gave me some of the old sales brochures. Shop labor at the time was quoted at $18 per hour! We also bought small numbers of LS5 engines that got used for the low power (550 hp) turbo engines
    This came out of a 71 Hallet daycruiser I crushed. It is exactly what I said it is and you are exactly right. My GM racing rep from the drag days told me it is an after market motor sold for use in the marine industry, so Hallet evidently bought these 8.8 motors with 990 heads to keep the compression down and run reg gas in the fuel sucking jet cruisers. He also said Banks bought a pile of them and made them turbo motors. So again Barry you are spot on. Thanks. Mark

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