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Complete ready to run engine 1071 blower 502 BBC pumpgas

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Complete ready to run engine 1071 blower 502 BBC pumpgas

Old 12-02-2014, 03:39 PM
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Default Complete ready to run engine 1071 blower 502 BBC pumpgas

Here is a Complete engine, fresh rebuild still on the Dyno cart.

The engine was built buy Garry Grimes twister engines out of Atlanta Ga (he builds MANY successful offshore engines)

It is a 502 big block chevy Intake to oilpan, with distributer and fuel pump.

-Forged GM crank
-Forged arp 7/16 bolt rods
-JE pistons
-Ported Iron heads
-GM 4 bolt heavy duty block
-Comp cams custom grind cam with stud girdle, roller rockers ect.
-B&M megablower 420 (based on research a good blower that falls between a 6-71 and 8-71 size, based on B&M's own design that has supported up to 1000hp depending on the engine used)
-Air/water aftercooler
-Demon carbs jetted and tuned on the dyno
-8.5:1 compression setup for 93 octane

Dynoed 705 hp (very mild for pumpgas can easily support more)

Good reliable engine that just has dyno time after being refreshened. $8500 complete ready to run.

Call with any more specifics, we changed over to cars and turbo smallblocks so we are selling the boat parts. I can also get you into contact with the engine builder as well for any more questions.

Thanks! Sam D. 423 605 2083 The engine is located in Chattanooga TN.

Last edited by DRInnovations; 12-03-2014 at 01:38 PM. Reason: wrong info
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Old 12-02-2014, 03:42 PM
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[IMG][/IMG]

Last edited by DRInnovations; 12-02-2014 at 03:43 PM. Reason: pic didnt work
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Old 12-02-2014, 03:45 PM
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[IMG][/IMG]
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Old 12-02-2014, 03:59 PM
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Originally Posted by DRInnovations
Here is a Complete engine, fresh rebuild still on the Dyno cart.

The engine was built buy Garry Grimes twister engines out of Atlanta Ga (he builds MANY successful offshore engines)

It is a 502 big block chevy Intake to oilpan, with distributer and fuel pump.

-Forged GM crank
-Forged arp 7/16 bolt rods
-JE pistons
-Ported Iron heads
-GM 4 bolt heavy duty block
-Comp cams custom grind cam with stud girdle, roller rockers ect.
-Edelbrock 10-71 megablower
-Air/water aftercooler
-Demon carbs jetted and tuned on the dyno
-8.5:1 compression setup for 93 octane

Dynoed 705 hp

Good reliable engine that just has dyno time after being refreshened. $8500 complete ready to run.

Call with any more specifics, we changed over to cars and turbo smallblocks so we are selling the boat parts. I can also get you into contact with the engine builder as well for any more questions.



Thanks! Sam D. 423 605 2083 The engine is located in Chattanooga TN.
Will you sell the edelbrock 10-71 separately?
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Old 12-02-2014, 05:12 PM
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I would like to sell complete. I have it priced for a pretty good deal for someone. We are trying to work with grimes on the 4v mercury Lsx heads on a hotrod setup so hopefully this puts a small dent in that project hahaha.

feel free to text or email as well [email protected]
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Old 12-02-2014, 05:57 PM
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That is a b&m 420 mega blower. It's a little smaller than an 8-71, little bigger than a 6-71.
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Old 12-02-2014, 08:17 PM
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I would be a little concerned with the parts and knowledge of the engine with a description of a B&M 420 as a edelbrock 10-71 ( which doesn't even exist)
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Old 12-02-2014, 09:40 PM
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502's with a mechanical fuel pumps hanging off the side sure are hard to come by in these parts .that would make a great motor for a shovelnose hydro ,or my sj
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Old 12-03-2014, 06:42 AM
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Originally Posted by airjunky
502's with a mechanical fuel pumps hanging off the side sure are hard to come by in these parts .that would make a great motor for a shovelnose hydro ,or my sj
Yes... a gen 4 bowtie block. hard to come by.
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Old 12-03-2014, 08:31 AM
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Bump for the bowtie ..
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