Bad Memorial day
#11
Crazy Energy
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I thought the 454 tall deck blocks were Bowtie and Gen V but with the Gen IV blocks were either 427 or 366 truck engines. Maybe if he posted the casting numbers we could sort this out.
Last edited by Velocity Vector; 05-27-2009 at 01:26 PM.
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The tall deck engines are awesome for reliability. They allowed the big trucks to use a taller piston so that they could add rings, and change the rod angle so they were better suited to running down the highway at high rpms for thousands of miles. Some of thise engines would go 250000 plus miles in a dump truck truning 3500-4000 shifting gears all day long.
Perfect for the marine world, just hard to find. If I were going to spend that much cash, I would just switch over to a tall deck aftermarket block. Then yo ucould have a tall deck 502 or whatever bore yo uwanted engine and really have a beast. Crank and rods would be the same. You are all ready buying pistons and a block, and the rest of the stuff goes on top. There might even be a taller piston out there somewhere.
Seriously good way to build an engine. Crank in the tall deck 454's etc were still 4".
Perfect for the marine world, just hard to find. If I were going to spend that much cash, I would just switch over to a tall deck aftermarket block. Then yo ucould have a tall deck 502 or whatever bore yo uwanted engine and really have a beast. Crank and rods would be the same. You are all ready buying pistons and a block, and the rest of the stuff goes on top. There might even be a taller piston out there somewhere.
Seriously good way to build an engine. Crank in the tall deck 454's etc were still 4".
#13
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If you have the extra cash to build a tall deck then a 540.
The boat is for sale though so...
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Patrick
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sell your blown motors parts and buy a new or newer take out i,ve had a lot of boats rebuilding a marine motor is hard because the load on the motor and the high rpm if it,s not perfect the motors keep shaking apart you might get a couple of runs but you,ll allways be working on it
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Casting Number
The casting number is 14044807 also I have the numbers off of the cam and the pistons if anyone could help me figure out what they are the numbers on the cam are CR13H000036 , 200486, AND 13-18-00 the number on the piston is 6063AS the crank is a Lunati and the numbers on it are BB421,L1722D6, 4.375, 2575GM
#16
Crazy Energy
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14044807...454T..............4-bolt, Bowtie, MkIV, CNC prep, Tall deck, 4.25" bore or 4.495" bores
Pistons should be dish aluminum.
Pro Series crankshaft
Stroke: 5.300 in.
Main Bearing: 2.750 in.
Rod Journals: 2.200 in.
Minimum Rod Length: 7.200 in.
Rear Main Seal: 2-piece
Nice crank, about 2G's
Pistons should be dish aluminum.
Pro Series crankshaft
Stroke: 5.300 in.
Main Bearing: 2.750 in.
Rod Journals: 2.200 in.
Minimum Rod Length: 7.200 in.
Rear Main Seal: 2-piece
Nice crank, about 2G's
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14044807...454T..............4-bolt, Bowtie, MkIV, CNC prep, Tall deck, 4.25" bore or 4.495" bores
Pistons should be dish aluminum.
Pro Series crankshaft
Stroke: 5.300 in.
Main Bearing: 2.750 in.
Rod Journals: 2.200 in.
Minimum Rod Length: 7.200 in.
Rear Main Seal: 2-piece
Nice crank, about 2G's
Pistons should be dish aluminum.
Pro Series crankshaft
Stroke: 5.300 in.
Main Bearing: 2.750 in.
Rod Journals: 2.200 in.
Minimum Rod Length: 7.200 in.
Rear Main Seal: 2-piece
Nice crank, about 2G's
I would never go bigger than 4 3/8 and that is pushing it
Go back down to a 4.25 crank and a flat top piston. You'll have much better results over all.
No wonder it came apart.
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Cam
Thanks for your help guys I am still having some trouble with the cam though the numbers on it are CR13H000036, 200486, 13-18-00 and here is a link to the lunati web site for my crank what is the stroke is it 4.375 or 5.300 again thanks for all the help
Last edited by jab052783; 05-31-2009 at 11:50 AM.