302 Chevrolet Engine Build

Nmbr1GMfan · 08-15-2018, 11:35 PM

Nice progress.

killintime6968 · 08-17-2018, 10:50 PM

Are you building for street or strip ? Higher quality rods would be a good idea. I have spun my Original 69 Z28/RS to 7200rpm on many occasions, but that is playing with fire. On one of my 302 engines in my Super Stock car I have spun it too well over 9000.

MIKE JONES 302 · 09-03-2018, 08:19 PM

Today I finished my line hone, set housing bore to 2.4914. Next I will clean the block and set up for decking, assembly height:

Stroke 3.00
Rod length 5.698
Comp height. 1.800
Total height. 8.998

I need to decide which head gasket thickness I will use, then I will cut the block.

MAURICE BLENDHEIM · 09-03-2018, 09:20 PM

Mike Jones you are doing a fine job, keep the Build updates coming. It's great to see a young fellow developing an ability. Your combination of parts should workout just fine, keep it light and low drag. The preparation of all the components are important, but you appear to have that handled. Keep up the "GOOD WORK"… Maurice.

MIKE JONES 302 · 09-03-2018, 09:47 PM

Quote:

Originally Posted by MAURICE BLENDHEIM

Mike Jones you are doing a fine job, keep the Build updates coming. It's great to see a young fellow developing an ability. Your combination of parts should workout just fine, keep it light and low drag. The preparation of all the components are important, but you appear to have that handled. Keep up the "GOOD WORK"… Maurice.

Thanks! A member on here donated this 1967 small journal Z/28 windage tray, which was very appreciated, very hard to find piece. I will clean it and punch the holes out.

Nmbr1GMfan · 09-03-2018, 10:23 PM

Very cool! Lots of great members here that's for sure.

Greg Reimer 7376 · 09-06-2018, 08:13 PM

Great looking engine build, but don't use OEM small journal rods. They break where the big end and the beam connect at the flare. Get the Manley rod or something else. The 67 engine DID use a 2 bolt main 327 4" bore block and a steel small journal 283 crank, so the assembly was very light for an OEM configuration. Also, do your early 462 heads have 2.02 intakes and 1.600 exhausts? I have a pair of those on my core shelf, and the rocker studs are cross drilled through the stud bosses with little roll pins through them and the studs. Only motor I ever saw like that were 62-65 hi po 409's. I wonder now if that is what these heads I have originally came on, if not a 68 325 horse 327. Very interesting engine build you have here.

08-15-2018, 11:35 PM	#1
Nmbr1GMfan VIP Member Join Date: Aug 2013 Posts: 1,763 Likes: 1,197 Liked 1,955 Times in 492 Posts	Re: 302 Chevrolet Engine Build Nice progress. __________________ Todd Greene

08-17-2018, 10:50 PM	#2
killintime6968 Member Join Date: Oct 2009 Location: Whitecourt,Alberta,Canada Posts: 236 Likes: 4,679 Liked 91 Times in 29 Posts	Re: 302 Chevrolet Engine Build Are you building for street or strip ? Higher quality rods would be a good idea. I have spun my Original 69 Z28/RS to 7200rpm on many occasions, but that is playing with fire. On one of my 302 engines in my Super Stock car I have spun it too well over 9000. __________________ Bruce Cameron 68 Nova 396 E/S 68 Camaro SS/? ex Checkmate Modified

09-03-2018, 08:19 PM	#3
MIKE JONES 302 Junior Member Join Date: Aug 2018 Location: Colorado Springs Colorado Posts: 28 Likes: 2 Liked 85 Times in 15 Posts	Re: 302 Chevrolet Engine Build Today I finished my line hone, set housing bore to 2.4914. Next I will clean the block and set up for decking, assembly height: Stroke 3.00 Rod length 5.698 Comp height. 1.800 Total height. 8.998 I need to decide which head gasket thickness I will use, then I will cut the block. Attached Thumbnails Last edited by MIKE JONES 302; 09-03-2018 at 08:21 PM.

09-03-2018, 09:20 PM	#4
MAURICE BLENDHEIM Senior Member Join Date: Jun 2011 Location: Langley (no igloos), British Columbia, Canada Posts: 569 Likes: 311 Liked 285 Times in 87 Posts	Re: 302 Chevrolet Engine Build Mike Jones you are doing a fine job, keep the Build updates coming. It's great to see a young fellow developing an ability. Your combination of parts should workout just fine, keep it light and low drag. The preparation of all the components are important, but you appear to have that handled. Keep up the "GOOD WORK"… Maurice.

09-03-2018, 10:23 PM	#6
Nmbr1GMfan VIP Member Join Date: Aug 2013 Posts: 1,763 Likes: 1,197 Liked 1,955 Times in 492 Posts	Re: 302 Chevrolet Engine Build Very cool! Lots of great members here that's for sure. __________________ Todd Greene

09-06-2018, 08:13 PM	#7
Greg Reimer 7376 VIP Member Join Date: Nov 2008 Location: Glendora,Calif. Posts: 1,137 Likes: 172 Liked 719 Times in 220 Posts	Re: 302 Chevrolet Engine Build Great looking engine build, but don't use OEM small journal rods. They break where the big end and the beam connect at the flare. Get the Manley rod or something else. The 67 engine DID use a 2 bolt main 327 4" bore block and a steel small journal 283 crank, so the assembly was very light for an OEM configuration. Also, do your early 462 heads have 2.02 intakes and 1.600 exhausts? I have a pair of those on my core shelf, and the rocker studs are cross drilled through the stud bosses with little roll pins through them and the studs. Only motor I ever saw like that were 62-65 hi po 409's. I wonder now if that is what these heads I have originally came on, if not a 68 325 horse 327. Very interesting engine build you have here.