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: 1986 Chrysler 175 HP 318 V8

CHRY-86 Issued: 3/10/1988 Last Revised: 4/7/2010 Revisions: 2-16-96, 10-11-01, 6-26-02, 5-13-03, 3-7-06 WR, 9-17-08 WR, 3-5-09 PC, 4/7/10 PC

Engine Family: Chrysler Corporation, Chry V8 A Late Advertised Comp Ratio: 9.80:1 Induction: 1-4 Bbl Engine Type: V8

Basic Specs:	Bore	Stroke	Main Journal Dia	Rod Journal Dia	Max Bore	Max Stroke	Max Displacement
	3.910"	3.313"	2.500"	2.125"	3.990"	3.328"	332.9 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
	547 g	1.715"	90 g	5/64, 5/64, 3/16	51 g	6.123"	6.148"	655 g	1343 g

Compression:	Deck Height	Head Gasket	Piston Type	Dome/Dish Vol	Dome/Dish Hgt	Comb Chamber Vol	Max Compression
	.047"	.030"	Flat	0 cc	0	57.2 cc	10.34:1

Valve Train:	Int Rocker Ratio	Exh Rocker Ratio	Intake Valve	Exhaust Valve	Lifter Type	Spring Type	Lifter Dia.
	1.50:1	1.50:1	1.780"	1.500"	Hyd/Roller	Outer only	0.903"

Camshaft:	Intake Lift	Exhaust Lift
	.395"	.395"

Cylinder Heads:	Casting No.	Intake Volume	Exhaust Volume
	4323302	162.0cc	70.0cc
	4448308	162.0cc	70.0cc
	4772576	162.0cc	70.0cc
Edelbrock	60767			Same runner cc's, chamber cc's, valve size as head replacing, intake & exhaust

Intake Manifolds:	Casting No.
	4323352	Cast Iron

Carburetors:	Number	Manufacturer	Trans	Type	Primary Throttle	Secondary Throttle	Primary Venturi	Secondary Venturi
	17085411	Rochester	Auto	4-Bbl	1.375"	2.250"	1.093"	.000"	Air valve secondary
	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.

Notes:
	Class Limits	Available with Automatic transmission only

Power Factors:	Stock Auto		S/S Auto		GT Auto		GTFwd Auto
Base Factors	255		245	12/18/02	245	2/13/06	245	2/13/06
w/Rep Heads: Edelbrock #60767 for Stock or SS, P5007140 for SS	260	2/7/12	250	10/4/16	250	10/4/16	250	10/4/16

Accepted Replacement Pistons for Stock Eliminator

   Effective 3/28/2023
Specs:     Comp Hgt-1.715"    Pin Dia-0.984"    Rings-5/64, 5/64, 3/16
Distance to Top Ring-0.248"    Piston Min Weight-547g

Manufacturer	Part Number

CP Pistons

M7-CP

Diamond

318 MOPAR 67-97

Diamond

80077

Ross

53959

Sealed Power

2414P

Sealed Power

656P

TRW

L2406F

TRW

L3013F

Venolia

318

Accepted Replacement Oil Pans for Stock Eliminator

Engine Group - Chry V8 A Late Effective 5/10/2022

Manufacturer	Part Number

Milodon

30750

Milodon

30755

Accepted Replacement Connecting Rods for Stock or S/S

Effective 8/23/2023
Specs: C/C Length- 6.123" Min Weight- 655g Journal Dia- 2.125" Big End Dia- 2.250" Pin Dia- 0.984"

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

Carrillo

CR-340Q4-SA-6125H

6.116"

655g

SUPER STOCK ONLY

Carrillo

CR-B34SS-0HS-

6.125"

688g

0.000"

Super Stock Only-Specify specs

CAT

CRS-6123

6.123"

725g

0.984"

SB Mopar

Crower

B93031

6.120"

668g

0.984"

SB Mopar

Eagle

CRS-6123

6.123"

695g

0.984"

SB Mopar

DH6123ANPB1

6.123"

701g

0.984"

SB Mopar

Lunati

LAE 1

6.125"

665g

0.927"

LS-1 Rod

Manley

14445

6.125"

655g

0.875"

SB Mopar

PBM Perf. Products

CR6125

6.126"

712g

0.927"

SB Chev Large Journal

Trick Flow Specialties

TFS-36612500

6.125"

670g

0.927"

SB Chev Large Journal

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

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