also I believe they were all dz

 

302= 327 bock, 283 crank ( not the same crank ), around 7500 to 8500 rpm. My uncle owns one at once he owned two. Personally if I saw one rev 8500 I'd run and duck

 

The 69's were all DZ stamped, but the 67 - 68's were stamped either MO or M?.

Can't remember right now what the other initial was but I am sure there were two different stampings for the 67 - 68 engines.

BTW, the engines would rev 8500 only if significantly modified. The stock valve springs were only good to around 6800 to 7000 before valve float and/or other valve train parts breakage occured. And this was only if lash and everything else was perfect. RPM kills. Just ask those that raced these.

 

I will have to check my fact book, I didn't know that all 302's were 2 bolt mains. Only in 69 was the engine a DZ, for 67-68 were MO or MP. Not all Z28's were single Holly's, you could pony up the door and order the cross ram dual Holly set up. The transmission Am or any Firebird didn't recieve Chevy engines until 1982. For the 1st and 2nd ge, the Poncho's ran their own mills.

 

If ford guys were smart they wouldn't drive fords

 

Pontiac did build a 303 motor in '69. It was basically a destroked 400 Ramair IV. It never got past the prototype stage. transmission Am's used Chevy 302's for racing,

 

Actually, some Ford 302s were made in Mexico.

I believe the Z28, transmission-Am, and Boss 302 raced in transmission-Am races, not in Can-Am.

 

Hey Mortis,
Thanks for setting the record straight. Some of the guys are young and don't have the experience some of us older guys have. Having read John Hoopers book, "The 1969 Camaro Reference Book", John explains that the Z-28 was actually a Special Performance Package. It certainly had the 302CI motor but also had a host of othe required goodies. Together they made up RPO Z-28. Kind of a play on words. In 1969 there were actually 6 versions of RPO Z-28. Would love to see some pictures of your 68 Z. That is my favorite year also.
Bo-tie

 

You say a 302 uses a 327 block right? How do you make a 327? Isn't it just a 350 block with a shorter stroke? Both 350 and 327 are 4" bores right?

 

You got it Dave, but perhaps the block is machined more to have the crank clear on the 350.

 

Hey Dave,
First off, Semper Fi buddy! The "4 inch block" can be a lot of things. With the 3.48" stroke it is a 350, with the 3.25" stroke it is a 327 and with the 3" stroke it is a 302. Weren't the Chevy Engineers smart! 3 different crankshafts no machine work required.

 

the chevy 302 came out befor the boss 302 ford came out with the boss 302 to compete with the camaro i believe the camaro and the mustangs raced transmission am racing and the camaro lost in 1967 to the mustang but in 68 and 69 we beat the mustang and i believe the boss 302 came out in 1969 races that was a close year but the camaro was dominant over the mustang that year

 

Semper Fi Bo-tie! Yesiree, God love the Chevy engineers of yester year!!

 

Sorry, I saw Porsche, so I had to jump in. There was no production Porsche Turbo in 1969. The first Turbo was the 1976 930. I'm also thinkin' that Porsche's (Lets be fair and give Audi some credit too) first twin-turbo racer was the later 935s in the later 1970's. Are you maybe thinking of the Can-Am 917/30 (which had a 4.5-5.x liter flat 12)? That would fit in your hp ballpark of 1100-1500. yikes! Porsche factory numbers say 0-100 m.p.h. in 5.1 seconds, with 0-200 in 12.4. (Although that was with a earlier 917/10, not making full power). The later 935 made a claimed 595 hp (it was a group "5"racer) and would run 0-100 in 6.1 seconds. What's that quarter mile wise??? Anybody???

 

You guys want some Chevy/Porsche transmission-Am connection? After racing a camaro z/28 in transmission-Am, he went to Porsche and raced 917/30s.

 

Of course, the short stroke on the 302 is why you could rev it to the moon.

 

ok this is going to sound stupid as i have no knowledge of 1st gen camaros but i have a friend who owns a 67 camaro with a 327 in it, he claims its the original, is he right or did it not come with a 327 in 67?

 

i have no clue, but didnt the 67 - 69 z/28s come with a factory optional 350?

 

Yes, 327's were available for the 1967 Camaro as well as a 350 small block and a 396 big block.

The 350 small block was not the Z engine. The 302 was.

The original LT-1 (not the same as the late model LT1 [notice no dash in the name]), 350 cube engine became the Z engine in 1970.

 

302 maufacturing

i'm new to your forum,
But I did own two 1969 camaro Z-28 coupes.

Both with DZ 302 engines. One I had bought in 1975 and it still had all its engine decals on. I still remember it said something like " Built with pride at the Tonawanda is a town in upstate New York state near Niagara falls.
The 302 could not only rev very easily, it did have low end punch, but the performance empahsis was on mid range performance. The kind of power needed over a road course.
Hope this helps.
ED