View Full Version : building up a dz 302, opinions?
subyman99
08-30-2012, 07:35 PM
Hey guys, Ive had a Dz 302 block in my garage for a few years now. I wanted to do something with it. I had my machinist go through it and make sure its a good block no issues (turned out good) my questions... ive got my survivor 69 z all correct. Now i want something that has some more power.
I want to build this 302 to have fun with, what should i do for cam,heads, pistons etc. Anyone have one they built that they would recommend building also?
Thanks!
btw, this engine will see mostly street, with the ocasional heavy right foot
Matt
Chevy454
08-30-2012, 08:07 PM
http://www.yenko.net/ubbthreads/ubbthreads.php/topics/499724/1
<<GRAEMLIN_URL>>/biggthumpup.gif
markus37
08-30-2012, 10:18 PM
If you want an engine with a pedigree, you should contact Warren Dernoshek in Canonsburg. He still does a few builds a year and certainly has the credentials as Don Yenko won many races when Warren ran the shop in the 60's and prepped his racecars.He builds the engines for some serious Vintage cars,including mine but also does street performance. He can be reached at 724-941-9765.
VintageMusclecar
08-30-2012, 10:50 PM
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Chevy454</div><div class="ubbcode-body">http://www.yenko.net/ubbthreads/ubbthreads.php/topics/499724/1
<<GRAEMLIN_URL>>/biggthumpup.gif </div></div>
Thanks for the plug Rob. <<GRAEMLIN_URL>>/grin.gif
Here's a little more civilized version I did for a customer while back:
302 Crossram build (http://www.vintagemusclecarparts.com/pages/302crossram1.html)
That was an great article, i have a Z myself, with a crossram. Never got it running good, so now the complete system is on the shelf until it makes me tick <<GRAEMLIN_URL>>/wink.gif again..
Brgds
subyman99
08-31-2012, 01:47 PM
My engine builder wants to sell me a nos set of 14011049 sbc gm aluminum heads for the 302, he bought them in the 80's. Anyone have any experience with them?
Matt
VintageMusclecar
08-31-2012, 01:53 PM
You need to establish two things before you start buying parts.
1) Your budget
2) Your performance goals
Bowtie heads would be cool, but do you really need them? A set of well prepared double hump heads will support a <span style="text-decoration: underline">lot</span> more power than most people will give them credit for, plus they retain the "originality" factor, if that matters.
Answer 1 & 2 and we'll go from there.
VintageMusclecar
09-02-2012, 09:22 PM
Hmmm...didn't mean to kill the thread. <<GRAEMLIN_URL>>/dunno.gif
Survivor 69/Z28
09-03-2012, 02:04 AM
Bummer, I was looking forward to this one......
subyman99
09-03-2012, 02:30 AM
Haha, didnt kill the thread. Ive been super busy. Did some trading, ended up with the aluminum 049 heads and a super nice 1178 crank. We are going for high compresion, Solid roller cam. Not sure if im staying with race gas or e85. It may be a winter project as i just had a 427 bbc built that hurt the wallet for engine building as of right now. Ill be slowly buying parts as time goes on.
Matt
Nova Jed
09-03-2012, 05:17 PM
I've often wondered what a set of vortec heads would do on a little 302? I like the solid roller cam idea too.
firstgenaddict
09-22-2012, 11:10 PM
CROWER
I can't speak enough of the customer service and willingness to explain why the cam was designed as it was.
Gave Dave Crower full license to do what ever he felt was necessary in the design of a solid roller for a 12.5 302, he asked if we wanted dyno numbers or did we have a car we were working with?
We said 69 Z28 muscle car cruising + stop light racing & occasional hammering on the drag strip, we didn't care about vacuum, idle quality, etc. He explained that the more factors we could provide him with the better he could design the cam, he explained that even though use is critical in regards to cam shaft selection the most critical factor is flow numbers on the heads in .100 increments.
Could not have been happier with the cam...
video of 302 solid Roller running (http://rides.webshots.com/video/3080168700059464720koYzEf?vhost=rides)
vBulletin® v3.8.11, Copyright ©2000-2025, vBulletin Solutions Inc.