EngineSpecs

Expanded Blueprint Specs:

The first thing you will notice is a whole lot more data than you get from the NHRA Tech Bulletins pages. That is why individual engines are shown rather than every available engine for the year-make.
The additional data that is not included on the NHRA Tech Bulletins pages is not authorized or approved by NHRA so do not assume that this has the same authority in those areas as the information on the official NHRA Technical Bulletins. The data from the NHRA web Technical Bulletins is included here and every effort is made to ensure that this data is the most up to date information published by NHRA.
An interesting tool is the link on the right side of the page to show all the cars that use the engine you have selected. You will find that information valuable in considering options for class placement for this engine.
You will find all the relavent information from NHRA for accepted replacement parts - pistons, rods, oil pans, etc. - is all located in this one page. You do not have to look anywhere else to find that information.

Engine Blueprint Specifications: 1970 Buick 360 HP 455 V8

BUI-70 Issued: 3/23/1970 Last Revised: 1/17/2007 Revisions: 5-24-71, 1-1-96, 2-24-96, 1-17-07 WR

Engine Family: General Motors, Buick V8 Big Advertised Comp Ratio: 1.50:1 Induction: 1-4 Bbl Engine Type: V8

Basic Specs:	Bore	Stroke	Main Journal Dia	Rod Journal Dia	Max Bore	Max Stroke	Max Displacement
	4.313"	3.900"	3.250"	2.250"	4.393"	3.915"	474.7 ci

Piston-Rod Specs:	Piston Weight	Comp Height	Pin Weight	Rings	Rings Weight	Rod C/C	Max Rod C/C	Rod Weight	Min Assy Weight
	634 g	1.900"	90 g	5/64, 5/64, 3/16	63 g	6.600"	6.625"	723 g	1510 g

Compression:	Deck Height	Head Gasket	Piston Type	Dome/Dish Vol	Dome/Dish Hgt	Comb Chamber Vol	Max Compression
	.010"	.020"	Dished	-16.00 cc	-0.020"	55.5 cc	13.32:1

Valve Train:	Int Rocker Ratio	Exh Rocker Ratio	Intake Valve	Exhaust Valve	Lifter Type	Spring Type	Lifter Dia.
	1.55:1	1.55:1	2.130"	1.755"	Hyd	Outer w/damper	0.842"

Camshaft:	Intake Lift	Exhaust Lift
	.490"	.490"

Cylinder Heads:	Casting No.	Intake Volume	Exhaust Volume
	1231786	201.0cc	152.0cc	Not official NHRA data, but from a reliable source.
	1240149 L	186.0cc	142.0cc	Large valves
Edelbrock	60037			Same runner cc's, chamber cc's, valve sizes as the OEM head being replaced, intake & exhaust.

Intake Manifolds:	Casting No.
	1231718	Cast Iron

Carburetors:	Number	Manufacturer	Trans	Type	Primary Throttle	Secondary Throttle	Primary Venturi	Secondary Venturi
	1901	Edelbrock	ALL	4-Bbl	1.375"	2.250"	1.108"	.000"	AV Secondary. Replacement for GM small venturi Quadrajets. NOTE: Venturi specs include .015" maximum allowable tolerance.
	4MV-7040246	Rochester	ALL	4-Bbl	1.375"	2.250"	1.093"	.000"	Air valve secondary

Power Factors:	Stock Man		Stock Auto		S/S Man		S/S Auto		GT Man		GT Auto		GTFwd Man		GTFwd Auto
Base Factors	385	12/15/04	385	12/15/04	325		325		325		325		325		325
w/Rep Heads: Edelbrock #60037	0		0		335	11/12/13	335	11/12/13	335	11/12/13	335	11/12/13	335	11/12/13	335	11/12/13

Accepted Replacement Pistons for Stock Eliminator

   Effective 1/26/2018
Specs:     Comp Hgt-1.900"    Pin Dia-1.000"    Rings-5/64, 5/64, 3/16
Distance to Top Ring-0.220"    Piston Min Weight-634g

Manufacturer	Part Number

CP Pistons

B1-CP

117961

Ross

106582

Accepted Replacement Blocks

Manufacturer	Part Number

Bulldog Mfg

BD-B50-455

455

Accepted Replacement Connecting Rods for Stock or S/S

Effective 8/23/2023
Specs: C/C Length- 6.607" Min Weight- 748g Journal Dia- 2.250" Big End Dia- 2.374" Pin Dia- 0.996"

Manufacturer	Part Number	C/C Length	Wgt.	Pin Dia.

Carrillo

BU-3455-0HS-6607B7S

6.606"

765g

0.990"

Pontiac

Carrillo

C427-76635S

6.625"

834g

0.990"

Pontiac

Carrillo

C427-A76635H

6.625"

787g

0.990"

Pontiac **Discontinued**

Childs & Albert

389-12

6.625"

0.947"

Pontiac

Crower

F91059

6.625"

0.981"

Pontiac

Crower

SP93419

6.625"

830g

0.947"

Pontiac

Eagle

CRS-6625P3D

6.625"

760g

0.947"

Pontiac

Eagle

CRS-6635

6.635"

760g

0.947"

Pontiac

KB Racing

BU455P

6.606"

769g

0.990"

Buick 400/455

Molnar Technologies

BH6600WUB8-A

6.604"

748g

1.000"

Buick

Oliver

ORPPONT6625

6.625"

0.981"

Pontiac

Oliver

P6225PONT

6.625"

790g

0.980"

Pontiac

Oliver

P6625PONTFR8

6.625"

819g

0.980"

Pontiac

TA 1633

6.607"

771g

0.996"

400/455 Buick

Note the calculations for actual displacement the maximum actual compression ratio.

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