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  #91 (permalink)  
Old 06-23-2012, 10:24 AM
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i member them z28 302's well. the 69 dz had more compression than the 67-68. i dont have any idea just what the hp was but with verry little effort them engines turned way up in the rpm's.course it was a long time ago. i cant member everthing. i saw first hand a 69 z28 eat them big block cars plum up. i was there.it was a bad *** little engine rite out of the box.im sure theres a better way now a days to get even more power out of one of them 302's.

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  #92 (permalink)  
Old 06-23-2012, 12:08 PM
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Quote:
Originally Posted by vinniekq2
This is a truly fun subject that applies to many enthusiasts that remember when particular engines were considered better engines
This "fun subject" has been beaten to death over the years. Moving to the Lounge.
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  #93 (permalink)  
Old 07-28-2012, 09:57 PM
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Go to ebay and search 302 chevy engine and a company will come up from I think Tennessee that builds a 302 Chevy to factory specs.
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  #94 (permalink)  
Old 07-28-2012, 10:00 PM
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GM said the 302 made 290 hp,nhra said the 302 made over 400. 350 block and 3 inch stroke crank and pistons and start building from there.
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Old 07-28-2012, 10:17 PM
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The 302 in my '55

This is (was) a 1969 crate 302 purchased from a dealer in KC back in 1970. Of course it been modified (just a little) but it puts my '55 down the 1/4 in 10.30 @ 134 mph.
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  #96 (permalink)  
Old 12-28-2012, 11:27 AM
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************ offers turn key dz302's.got10;400bucks?

Last edited by poncho62; 12-28-2012 at 01:17 PM. Reason: Commercial advertising
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  #97 (permalink)  
Old 12-28-2012, 06:06 PM
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Maybe already stated, didnt read all 7 pages. Chevy offered the 302 as an optional engine in the 70 Z/28, the 350 LT1 being the standard offering.
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  #98 (permalink)  
Old 12-28-2012, 06:09 PM
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Originally Posted by Old Fool View Post
Maybe already stated, didnt read all 7 pages. Chevy offered the 302 as an optional engine in the 70 Z/28, the 350 LT1 being the standard offering.
I'm glad you didn't read all 7 pages. It is from 2002!!!
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Old 12-28-2012, 07:55 PM
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Originally Posted by Old Fool View Post
Maybe already stated, didnt read all 7 pages. Chevy offered the 302 as an optional engine in the 70 Z/28, the 350 LT1 being the standard offering.
Never ever heard of that....and no mention of it here

1970 Camaro data - Statistics, facts, decoding, figures & reference information
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  #100 (permalink)  
Old 12-29-2012, 09:35 AM
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1969 Z-28 302 with the cross ram 2 4bbl carbs. now that was a sweet Factory muscle car find that manifold you got 12,000 plus!!
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  #101 (permalink)  
Old 12-30-2012, 11:28 AM
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Originally Posted by poncho62 View Post
Never ever heard of that....and no mention of it here

1970 Camaro data - Statistics, facts, decoding, figures & reference information
My old memory stands corrected. LT1 was the Z/28 oem offering, but SCCA still required 305 ci limit, so 70 Z/28s were raced with destroked LT1's, in essence a DZ302.
Dam amazing how memory fails and how a fact becomes incorrect and is then believed by the mind as fact.
Thanks for helping me clean out some of them old cobwebs.
Now if I just had my 69 Z/28 again to go with my refreshed memory.
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  #102 (permalink)  
Old 12-30-2012, 12:00 PM
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Think about it, a 69 302 was the same as the 70 350. The only difference between the two was the .48" stroke. All 302 did not have low end throttle response. The motor was too radical for the street. That is why a 70 350 LT-1 / Z-28 was built.
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  #103 (permalink)  
Old 12-30-2012, 01:02 PM
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Originally Posted by lg1969 View Post
Think about it, a 69 302 was the same as the 70 350. The only difference between the two was the .48" stroke. All 302 did not have low end throttle response. The motor was too radical for the street. That is why a 70 350 LT-1 / Z-28 was built.
The 302 was known for no low end but with the right gearing 4:88-5:38 it was a screamer. In OEM form the 302 was NOT too radical for the street unless the optional camshaft was installed by the dealership along with the 2X4 cross ram intake.

Vince
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  #104 (permalink)  
Old 12-31-2012, 08:54 AM
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My '69 302 had great throttle response right off idle and up.
What it didn't have was low rpm torque.
The 13# Zoom aluminum flywheel didn't help either with the low rpm torque.
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  #105 (permalink)  
Old 12-31-2012, 09:28 AM
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In 1973, I was given a DZ engine. Friend had a 69 z28 and blew it up. Couple of broken pistons, crank scored etc....I think the block was good, I never checked. I traded it for a L78 396 that needed rebuilding. We were all into big blocks then....Seemed like a good idea at the time.
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