darts new SHP block

[grumpyvette]

http://gallery.barrymorrison.com/albums/userpics/10001/SHP_Brochure-1v2a.pdf

 

http://www.jegs.com/p/Dart/1029740/10002/-1/10719

AT $1456 there not CHEAP but they a certainly a BARGIN compared to putting $1000 in machine work into a 35 plus year old chevy block thats noware near as stong and very likely to be rusted internally and one that might have cracks

 

and at $1000 less than thier full race block its a deal for a street/strip engine combo

 

http://www.jegs.com/p/Dart/1064093/10002/-1/10719

 

 

whats the differance?

 

its got a bit less machine work, its not quite as thick and its got less nickle in the casting, and theres less options

[grumpyvette]

IF theres any way your going to invest in a decent aftermarket block as a base for a SBC you sure want a relieable/durrable rotaing assembly, ID strongly advise a 5140 04 4340 FORGED CRANK and 7/16" ARP rod bolt rods and a bit of thought as to the compression ratio, forged pistons and a decent valve train to avoid damage to the block

with a 4340 FORGED crank theres not much in the way of significant mechanical strength lost going to the more comon 350 main bearing size journals and you reduce the bearing surface rotational speed just a bit so rotational frictions reduced slightly and most SBC cranks are designed for that bearing dia.

 

 

CHEVY SMALLBLOCK V-8 Crankshaft Casting Numbers

 

SBC TWO PIECE REAR MAIN OIL SEALS

 

1130.......327.......forged..medium journal...3.25" stroke

1178.......302.......forged..medium journal...3.00" stroke

1181.......305,350...cast....medium journal...3.48" stroke

1182.......350.......forged..medium journal...3.48" stroke

2680.......327.......forged..small journal....3.25" stroke

2690.......350.......forged..medium journal...3.48" stroke

3279.......302.......forged..medium journal...3.00" stroke

3474.......283.......forged..small journal....3.00" stroke, military tank use

4577.......327.......forged..small journal....3.25" stroke

4672.......327.......forged..medium journal...3.25" stroke

310514.....350.......cast....medium journal...3.48" stroke

330550.....350.......cast....medium journal...3.48" stroke

354431.....262.......cast....medium journal...3.10" stroke

3727449....283.......forged..small journal....3.00" stroke

3729449....265.......forged..small journal....3.00" stroke

3734627....327.......forged..small journal....3.25" stroke

3735236....265,283...forged..small journal....3.00" stroke

3735263....283.......forged..small journal....3.00" stroke

3782680....327.......forged..small journal....3.25" stroke

3814671....327.......forged..small journal....3.25" stroke

3815822..265,283,302.forged..small journal....3.00" stroke

3835236....283.......forged..small journal....3.00" stroke

3836266....283.......forged..small journal....3.00" stroke

3848847....283.forged or cast..sm. journal....3.00" stroke

3849847....283.......forged..small journal....3.00" stroke

3876764....283.forged or cast..sm. journal....3.00" stroke

3876768....283.......forged..small journal....3.00" stroke

3884577....327.......forged..small journal....3.25" stroke

3892690....350.......forged..medium journal...3.48" stroke

3911001....307,327...cast....medium journal...3.25" stroke

3911011....307,327...cast....medium journal...3.25" stroke

3914672....327.......forged..medium journal...3.25" stroke

3923279....302.......forged..medium journal...3.00" stroke

3932442..267,305,350..cast...medium journal...3.48" stroke

3941174....307,327...cast....medium journal...3.25" stroke

3941178....302.......forged..medium journal...3.00" stroke

3941182....350.......forged..medium journal...3.48" stroke

3941188....350.......forged..medium journal...3.48" stroke

3949847....283..forged or cast..sm. journal...3.00" stroke

3951130....327.......forged..medium journal...3.25" stroke

3951529....400.......cast....large journal....3.75" stroke

 

 

SBC ONE PIECE REAR MAIN OIL SEAL

 

10168568...265.......cast....medium journal...3.00" stroke

12552215...364.......cast....medium journal...3.62" stroke, Gen. III, 6.0L

12552216...325,350,364.......cast....medium journal...3.62" stroke, Gen. III 5.7L LS1, 5.3L, 6.0L

12553312...293.......cast....medium journal, 3.27" stroke, Gen. III, 4.8L

12553482...293.......cast....medium journal, 3.27" stroke, Gen. III, 4.8L

14088526...305,350...cast....medium journal...3.48" stroke

14088532...350.......forged..medium journal...3.48" stroke

14088535...305,350...cast....medium journal...3.48" stroke

14088552...350.......forged..medium journal...3.48" stroke

 

and if your going to drop $1500 on a BARE BLOCK your probably going to want to try to insure it doesn,t get cracked when a cheap cast crank fails so an ALL FORGED AND BALLANCED ROTATING ASSEMBLY is a good idea.