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1969 Pontiac Ram Air IV Cylinder Heads #722 For Sale


1969 Pontiac Ram Air IV Cylinder Heads #722



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1969 Pontiac Ram Air IV Cylinder Heads #722:
$3,350

Pontiac Ram Air IV

1969 Pontiac Ram Air IV

Cylinder Heads #722(9796722)

Porting by Nunzi's of New York


DESCRIPTION

The item up for sale today is a pair of ready to bolt on, 400 ci, Pontiac RAM AIR IV cylinder heads that have light port work from Nunzi's Automotive Machine Shop in Brooklyn, New York.

These heads are rare.

ONLY 1500 pairs were sold from 1969 - 1970.

Nunzi's is widely recognized as an expert in Pontiac repair and restoration.

Nunzi's porting job includes reworking of the very important short turn (short side radius), smoothing of the pushrod guides (blending), and work in the bowl area (decrease airflow turbulence). The intake ports have gasket matched, to optimize air flow and reduce restriction. The intake port is NOT larger than the gasket, at the face.

These cylinder heads flow BETTER than stock.

The heads have been machined for positive seals and feature 7/16" screw-in studs.

These heads have been outfitted with top shelf quality parts!

The valve springs, locks, and retainers are sourced from Competition Cams. The springs are #999 solid roller springs, and the #732 retainers are titanium, as well as the 10 degree locks. Seat pressure @ installed height of 1.875" is 225 lbs.

You will also find BRONZE GUIDES and Manley STAINLESS STEEL valves installed in these cylinder heads. Intake valves measure a stock 2.110" diameter. Exhaust valves are 1.770" .

Just to be sure that these are the real deal, I had them flow benched at Greg's Cylinder Heads & Engines in Riverview, Michigan.

Peak intake and exhaust port flow is 257.5 CFM & 211.1 respectively.

Here are the results-

The springs were also measured and inspected.

Comp 999 Springs are rated at 633 lbs and have a 1.550 outside diameter.

Coil bind occurs at 1.090" of lift.

These springs MAXED OUT Greg's test equipment at 500 lbs @ 0.425" of lift!!

History of Ram Air IV

The Ram Air IV replaced the Ram Air II in 1969. The Ram Air IV used the RA II's camshaft but lift in the RA IV was increased to .520 thanks to the use of 1.65 rocker arms (vs 1.50). The RA IV, like the RA II that preceded it, used round port cylinder heads. From 1969 though 1970, the RA IV was available in both A-Body (GTO/Judge) and F-body (Firebird/Trans Am) form. While 1969-70 A-body RA IV production was low (1517) only 102 RA IV Firebirds and 55 Trans Ams were built in 1969. RA IV Trans Am production 'jumped' to 88 units built in 1970. Today, any high compression round port Pontiac (i.e. RA II or RA IV) is a highly sought after car due to its low production and superior performance on the street and at the strip. After RA IV production ended, Pontiac continued using its round port cylinder head design in 1971. However, by this time compression had dramatically dropped off, marking the beginning of the end of the muscle car era.

How to Identify Ram Air IV

Identifying Pontiac cylinder heads is also a fairly straightforward procedure. This process is made easier since the majority of Pontiac cylinder heads have the casting number, or a portion of it, on the outside of the head (as opposed to under the valve cover like many other makes). Determining which head you're looking at is as simple as reading the casting number and the date code -- usually.

Some heads are missing either the casting number, (an example would be early production '68 Ram Air II heads or some '73 Super Duty heads), while others are missing date codes ('69 Ram Air IV and '70 Ram Air IV cast before November, 1970).

Most of the time, however, both date codes and casting numbers are found on the heads. Early heads often used the entire casting number which is typically seven digits. Later heads (from the mid-Sixties on) usually used only the last two or three digits of the casting number. These numbers are usually found on the exhaust side of the head, either just below the valve cover rail, on the center two exhaust ports or on the end exhaust ports. Some heads carried the casting number (or a portion thereof) below the spark plug holes between the center and end exhaust ports.

Beginning in 1968, Pontiac fitted their highest-performing engines with heads featuring redesigned round exhaust ports (shown above). Engines so equipped were the ‘68 Ram Air II 400, 1969-70 Ram Air IV 400, 1971-72 455 H.O., and 1973-74 Super Duty 455.


Ram Air IV
722, 9796722
(borrowed from Year One website)

  • HEADS, SPRINGS, AND VALVES

  • 1969 #722 CYLINDER HEADS

  • MACHINED BY NUNZI'S

  • GASKET MATCHED

  • LIGHT PORTING OF SHORT TURN, BOWL, AND PUSHROD GUIDES

  • SPECIALLY MILLED FOR POSITIVE SEALS

  • COMPETITION CAMS SPRINGS, LOCKS, AND RETAINERS

  • COMPETITION CAMS #999 SPRINGS

  • COMPETITION CAMS #732 TITANIUM RETAINERS

  • 10 DEGREE LOCKS

  • MANLEY STAINLESS STEEL VALVES

  • 2.11" INTAKE / 1.77" EXHAUST

  • SCREW-IN 7/16 STUDS

  • This item is USED.

Look closely at ALL of the photos and ask questions before offerding.

NO INTERNATIONAL offerS.

MUST PAY IN FULL WITHIN 7 DAYS OF sale END.

I WILL NOT END sale EARLY, DO NOT ASK!

$25.00 Crate/Packaging Fee

Shipping will be arranged at time of purchase...

Winner pays ACTUAL shipping cost based on zip code.

Or, you can PICK IT UP.

Good Luck!

v


Buy Now


 

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