AMC401 Build for itselliot

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Markus is happy because his engine gets some of the leftovers

[jcisworthy]

I ordered Speed-Pro/TRW L2380NF30 for this one because they were less expensive than Wiseco when you add the cost of the rings in.

http://www.ebay.com/itm/Speed-Pro-TRW-AMC-Jeep-401-Forged-27-5cc-Dish-Coated-Pistons-MOLY-Rings-Kit-30-/171054512412

Here are the Wiseco pistons but they require expensive rings.
http://www.campbellenterprises.com/a...ons-wiseco.php

Wiseco pistons come with rings.

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Yep, it depends on where you order them from.

[Nikkormat]

What do you expect the power output of this motor to be? Will it clear 400hp? 6250 RPM rev limiter capable? If it's not what would you change to make it rev to 6250? I'm looking to embarrass some more imports in the new wagon.

[highspdlife0224]

Hey! I think I recognize that motor!

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What do you expect the power output of this motor to be? Will it clear 400hp? 6250 RPM rev limiter capable? If it's not what would you change to make it rev to 6250? I'm looking to embarrass some more imports in the new wagon.

With the relatively small cam and the Performer intake manifold my guess would be about 350hp at 5000 rpm. It should have plenty of low end grunt thought, which is the goal with this one.
To clear 400 hp you need a bigger cam and better intake and bigger carb.
Page 3 shows dyno results for a 9.5 compression ratio 401 with a Isky 280HL cam, Torker intake and 750 Holley which made 380hp at 5200 rpm.

http://rebsamcandjeep.proboards.com/thread/144/dyno-time?page=3

If you want your peak horsepower at 6250 just go with a bigger cam, Torker intake and bigger carb.

[itselliot]

Hey! I think I recognize that motor!

I imagine you just might.......lol

Keep looking for those parts!................

[itselliot]

With the relatively small cam and the Performer intake manifold my guess would be about 350hp at 5000 rpm. It should have plenty of low end grunt thought, which is the goal with this one.
To clear 400 hp you need a bigger cam and better intake and bigger carb.
Page 3 shows dyno results for a 9.5 compression ratio 401 with a Isky 280HL cam, Torker intake and 750 Holley which made 380hp at 5200 rpm.

http://rebsamcandjeep.proboards.com/thread/144/dyno-time?page=3

If you want your peak horsepower at 6250 just go with a bigger cam, Torker intake and bigger carb.

What CFM are we looking at?

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600/650 cfm. I wouldn't go much bigger unless you change to a Air Gap or Torker intake manifold.

[SC/397]

The block looks a little better now.

[cma]

Looks so nice!!!

[rang-a-stang]

any updates?

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http://www.ifsja.org/forums/vb/showthread.php?p=1662655#post1662655

Yep, I finished up the 401 for my Mate in England last night so now, I can move on to this one... Here is the never ending list that takes up all of my spare time. Wish I could work on something for ME one of these days.
8: 70 390: Pile of parts. Build to order. At the Machine Shop
56. 426Stroker: Crank is done. Build to order
62: Rick's429. Parts in house, ready for machining
63. Ambo383stroker: Ready to clean and assemble
71. javtwotone 383 stroker: Back in que..
73. CastPiston401crossram: Need to install intake
74. RR290: bone stock 290 for ’66 Rogue Convert. Needs disassembled
75. BStuts390: Ready to clean and assemble
76. BMathis401: On hold.
77. itselliot401: Ready to clean and assemble
78. cma360: Ready to clean and assemble
79. MS304: Tear down, inspect, fix, rebuild.
80. DBX11360: 360 for a J10. At the Machine Shop
81. MM390: Warmed over 390 for a Javelin. At the Machine Shop
82. RR360: Re-ring, new bearings, timing set, valve job

??. 383 Stroker
??. 401 Forged Pistons
??. 70 390 +.040 Forged Piston
??. 70 390 cast piston

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Spent 3 hours on the block tonight getting the threads chased and the outside of the block cleaned with one coat of primer and one coat of paint. Now I can clean the inside and start the assembly process.
Bare Block

Zinc Primer

Base coat of paint

[cma]

so nice job!