Jump to content

How rare is this?


Recommended Posts

Not very rare, all 121 heads with 46mm intake and 38mm exhaust valves were marked 121Ti. They were not just used on the Ti and Tii models. It is much more unlikely to find a standard 121 head these days.

I have a 121TI head from a 1971 "regular" 2002 that has the smaller intake valves. I think there are some folks who think that just having one of these means it came from a 2002ti.

The 121 head from my 72tii engine has the 46mm x 38mm valves.

Jim Gerock

Ruby Red 73tii built 5/30/73 "Celeste"

Riviera 69 2002 built 5/30/69 "Oscar"

Link to comment
Share on other sites

It is much more unlikely to find a standard 121 head these days.

I've got a standard 121 head, 71 cast on my 71.. Is that really that rare? Never thought much of it.

1971 BMW 2002

38/38 DGAS

292 cam

TEP 4-1 header

Ansa Sport muffler

Bilstein Sports

H/R Sports

Full Urethane

Bavaria Control Arms/02 Tension Rods

IE adjustable sways

15x7 König Rewind

Link to comment
Share on other sites

my'69 (bought new) came with a "121ti" cylinder head and I'm not sure I've ever seen a US spec 2002 with a "just plain 121" head that was original to the car (check the casting date).

I didn't think there was any difference between a 121ti head and a 121 head; since compression ratios on an M10 are determined by piston height, it couldn't be that one is a higher CR than the other, and I think the valves are the same size--at least the parts book seems to indicate that.

Anyone have any thoughts--and do you have a US spec 02 with its original head marked as a "plain" 121?

Another 02 mystery...



'69 Nevada sunroof-Wolfgang-bought new
'73 Sahara sunroof-Ludwig-since '78
'91 Brillantrot 318is sunroof-Georg Friederich 
Fiat Topolini (Benito & Luigi), Renault 4CVs (Anatole, Lucky Pierre, Brigette) & Kermit, the Bugeye Sprite

Link to comment
Share on other sites


This topic is now archived and is closed to further replies.

  • BMW Neue Klasse - a birth of a Sports Sedan

    BMW Neue Klasse - a birth of a Sports Sedan

    Unveiling of the Neue Klasse Unveiled in 1961, BMW 1500 sedan was a revolutionary concept at the outset of the '60s. No tail fins or chrome fountains. Instead, what you got was understated and elegant, in a modern sense, exciting to drive as nearly any sports car, and yet still comfortable for four.   The elegant little sedan was an instant sensation. In the 1500, BMW not only found the long-term solution to its dire business straits but, more importantly, created an entirely new
    History of the BMW 2002 and the 02 Series

    History of the BMW 2002 and the 02 Series

    In 1966, BMW was practically unknown in the US unless you were a touring motorcycle enthusiast or had seen an Isetta given away on a quiz show.  BMW’s sales in the US that year were just 1253 cars.  Then BMW 1600-2 came to America’s shores, tripling US sales to 4564 the following year, boosted by favorable articles in the Buff Books. Car and Driver called it “the best $2500 sedan anywhere.”  Road & Track’s road test was equally enthusiastic.  Then, BMW took a cue from American manufacturers,
    The BMW 2002 Production Run

    The BMW 2002 Production Run

    BMW 02 series are like the original Volkswagen Beetles in one way (besides both being German classic cars)—throughout their long production, they all essentially look alike—at least to the uninitiated:  small, boxy, rear-wheel drive, two-door sedan.  Aficionados know better.   Not only were there three other body styles—none, unfortunately, exported to the US—but there were some significant visual and mechanical changes over their eleven-year production run.   I’ve extracted t
  • Upcoming Events

  • Create New...