E-street cylinder heads for small-block Ford
with 1.90" intake valves (sold in pairs) ................................................#EDE5023
with 2.02" intake valves (sold in pairs) ................................................#EDE5025



Technical Notes: Use with hydraulic camshafts less than .550" max lift.



Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3/4" reach with flat gasket seat.

Requires hardened pushrods. 289-302 c.i.d. with 7/16" head bolts requires #9680 head bolt
bushing kit.

1.90" heads are ideal for stock pistons; 2.02" heads require additional piston to
valve clearance.

Not legal for sale or use on pollution controlled motor vehicles.



SMALL-BLOCK FORD: #EDE5023 | #EDE5025

Chamber volume...............................................60cc

Deck thickness ..................................................5/8"

Valve spring diameter (1.750" installed height) ........1.25"

Maximum valve lift ........................................0.550"

Rocker stud diameter (with guide plate)................3/8"

Pushrod diameter............................................5/16"



Intake

Port volume ...........................................................170cc

Valve size...................................................1.90" / 2.02">BR>


Exhaust

Port volume .............................................................60cc

Valve size................................................................1.60"



SPECS


RECOMMENDED INSTALLATION ITEMS FOR YOUR NEW E-STREET™ CYLINDER HEADS

S/B Chevy Ford 289-302 Ford 351W

Complete head gasket set

(Includes head, intake, exhaust and valve cover gaskets)..........#7361 .................#7364 .................#7364
Head bolt set (includes hardened washers)...............................#8550 .................#8552 .................#8553


Head bolt bushing set (for 289-302 with 7/16" bolts) .................. – ...................#9680.....................

Push rod set (for hydraulic flat tappet cams).............................#9629 .................#9632.....................

Push rod set (for hydraulic roller cams).....................................#9653 .................#9655 .................#9656

Roller rocker arm set with locks.............................................#77770* .............#77780.............#77780

(Note: *1.5:1 ratio rocker arms; ^1.6:1 ratio rocker arms; for spark plugs, use Champion RC12YC or equivalent)

SIGNATURE SERIES ENGINE ACCESSORIES FOR YOUR NEW E-STREET™ CYLINDER HEADS


E-Street Bare Heads are also available:

with 70cc combustion chambers (#5EDE072) | with 64cc combustion chambers (#EDE5088)

Note: Bare heads have valve guides and valve seats installed; final sizing of the guides
and finish valve job are required. Sold and packaged in pairs.


E-Street Bare Heads are also available:
with 1.90" intake seats (#5020) | with 2.02" intake seats (#5024)

Note: Bare heads have valve guides and valve seats installed; final sizing of the guides
and finish valve job are required. Sold and packaged in pairs.