AMC V8 Block Engine - Identity Crisis V8 Block Engine - Identy...AMC V8 Block Engine - Identity...

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New Page 1 AMC V8 Block Engine - Identity Crisis A Small-Block That Thinks It's A Big-Block? Photography by Ken Lazzeri Mopar Muscle, January 01, 2005 The raw block is machined. then the sleeves are inserted, at which p AMC motors have always been stuck in an alternate universe by virtue of their physical stature. T We followed along as Indy and Payton's Performance screwed together the ultimate bracket bom racing terms, this is low-rpm). If that wasn't enough, the engine weighs a light-by-small-block-stan Indy Cylinder Head, gurus of the big-inch Mopar, and Payton's Performance, gurus of American M Who Is J.T. Payton? J.T. Payton is an AMC nut stretching back to 1972. When he was young and on a limited budget ( 343, and fly-cut the pistons for piston-to-valve clearance, they would have a low-dollar 12:1 engin J.T. is the proprietor of Paytons Performance, the one-stop Rambler shop known as the Mecca of wanting a musclecar and on a high school student's budget, he found the path to American Motor Page 1

Transcript of AMC V8 Block Engine - Identity Crisis V8 Block Engine - Identy...AMC V8 Block Engine - Identity...

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AMC V8 Block Engine - Identity Crisis

A Small-Block That Thinks It's A Big-Block?

Photography by Ken LazzeriMopar Muscle, January 01, 2005

The raw block is machined. then the sleeves are inserted, at which point the block is put

AMC motors have always been stuck in an alternate universe by virtue of their physical stature. The 290 V

We followed along as Indy and Payton's Performance screwed together the ultimate bracket bomber 500racing terms, this is low-rpm). If that wasn't enough, the engine weighs a light-by-small-block-standards 450 pounds completely dressed out! Chevy's own rat motor tips the scales at a portly 700 pounds. Show us a big

Indy Cylinder Head, gurus of the big-inch Mopar, and Payton's Performance, gurus of American Motors products, put together an all

Who Is J.T. Payton?J.T. Payton is an AMC nut stretching back to 1972. When he was young and on a limited budget (read: broke), he had to go the most economical route. through trial and error, he found that AMC engines were easy to keep together, as well as cheap to build. The high343, and fly-cut the pistons for piston-to-valve clearance, they would have a low-dollar 12:1 engine. Because aftermarket parts were in limited production, the AMC rodder would have to make the factory pieces work. AMC spawned innovation.

J.T. is the proprietor of Paytons Performance, the one-stop Rambler shop known as the Mecca ofwanting a musclecar and on a high school student's budget, he found the path to American Motors, as they tended to be more affordable than more mainstream

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Building Blocks The time is right for all you AMC fanatics out there. The aftermarket tha

The rotating assembly is the foundation of any motor, and this AMC was filled with some of the best parts known to the aftermarket. A Moldex 4340 4.150longevity. A Speed Pro 1/16 ring pack graces the Wiseco forged slugs utilizing a .022 top gap and a .026 second ring gap. GRP 2000

The rotating assembly is the foundation of any motor, and this AMC was filled with some of

The IC-401 block is fully prepped and ready for assembly. The final bore is 4.375, which i

The crankshaft is held in place with steel billet main caps, with splayed side studs and n

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A Milodon gear drive (PN 13700) was used to guarantee accurate timing events. No timing ch

Charlie's Oil Pan provided this trick custom aluminum dragster-style pan with a kick-out and starter pocket that uses an Indy #340 swinging pickup. The oil capacity is eight quarts. The Indy/Razor billet single

Comp Cams was chosen to supply the solid roller profile, Pacaloy valvesprings (PN 947-16)

J.T. Payton of Payton's Performance and owner of this 500-inch aluminum AMC motor assisted

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The single-stage oil pump takes oil from the pan (via a -12 AN line) and pumps it out to a

Indy's CNC-ported heads get five-axis porting. The process takes four hours per head, but

Charlie's Oil Pan provided this trick custom aluminum dragster-style pan with a kick-out a

Indy builds their own AMC timing covers, as well. This one is shown with an MSD billet dis

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Indy's new 401-1 CNC cylinder heads are a work of art, featuring 300cc intake runners, that reportedly flow 390/282essentially a big-block cylinder head for a small-block, and at 300 cc, nearly perfect for a bracket racing engine in the 470 to 500ci range.

Indy's new 401-1 CNC cylinder heads are a work of art, featuring 300cc intake runners, tha

The outboard 7/16 head stud bosses are for use with the IC-401 Maxx block that has been eq

Jesel's state-of-the-art shaft-mounted roller rockers (PN KCS-22044) were used in a 1.7:1

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The ignition system on the 500-inch AMC is all MSD, featuring a Pro Billet distributor (PN

Making over 800 hp requires a pretty serious induction. Indy stepped up with this new 401-

So there you have it. Is it a 290? 343? Nope, 500 inches of aluminum small-block knocking out a reliable 840 hp and a very un

The Jesel mounting bar uses eleven 7/16-inch mounting bolts. Combined with Indy's own 3/8

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SOURCE

ARP531 Spectrum CircleOxnardCA  93030805-278-7223

ATIBaltimoreMD800-284-3433www.atiracing.com

Charlie's Oil Pans5281 S. Hametown Rd.NortonOH  44203330-825-3586

COMP Cams

GRP Connecting RodsDenverCO303-935-7565www.grpconrods.comHolley Performance Products1801 Russellville Rd.Bowling Green, KY 42101

So there you have it. Is it a 290? 343? Nope, 500 inches of aluminum small-block knocking

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Bowling Green, KY 42101KY  42101270-782-2900www.holley.comIndy Cylinder Head8621 Southeastern Ave.IndianapolisIN  462393-17/-862-3724indyheads.com

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