The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board > Squarebody Projects and Builds

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 05-10-2010, 03:01 PM   #1
78 Chevyrado
Account Suspended
 
Join Date: Dec 2007
Location: Unnapreciative, Trollville
Posts: 2,079
Engine Rebuild is Coming Soon

Its about that time, cams wearing out and oil psi is getting low, plus I suddenly have a lot more money coming in. ;D I have to buy tires for the car and wheels for the truck (2 weeks), and then everythings going into the engine!

I'm gonna stick with the stock 350 short-block, but add summit heads and a comp cams roller cam as well as an offy dual port intake manifold. I been wondering about that intake, so I'm going to try it. If it sucks I'll get a performer EPS.

I'll be getting my short-block rebuilt, and with the summit heads it'll make right around 9:1 comp ratio.

I'm getting Summit heads SUM-152123
http://www.summitracing.com/parts/SUM-152123/

New Distributor - I'll be buying a bunch of stuff from this guy if all goes well
http://cgi.ebay.com/ebaymotors/SBC-B...Q5fAccessories

Offenhauser Intake 6007DP

Engine Rebuild Kit (should give 8.9-9.0 comp ratio with the summit heads) Actual part number may change depending on which exact bearings I end up needing, but these are the pistons i want.
http://www.summitracing.com/parts/FE...-311/?rtype=10

Comp Cams Roller Camshaft Kit for an XR264HR
http://www.compcams.com/Cam_Specs/Ca...?csid=157&sb=2

Comp Cam Roller Tip Rocker Arms 1412-16
http://www.summitracing.com/parts/CCA-1412-16/?rtype=10

I'll be keeping the edelbrock 1406, since it only has like 10k miles on it

At some point soon it'll have electric fans.

And once I get it all buttoned up, I'm getting 2.5 dual exhaust with cherry bomb vortex mufflers. I'll get 2.5 since I have half of it already.

Once the engines built, I'm having a 700r4 built and will adapt it into my chassis. I'll be keeping the 3.73 rear gears.

Thats all thats concrete at this time. the engine will be painted something like coke can red, since my interior is red.
78 Chevyrado is offline   Reply With Quote
Old 05-10-2010, 03:02 PM   #2
78 Chevyrado
Account Suspended
 
Join Date: Dec 2007
Location: Unnapreciative, Trollville
Posts: 2,079
Re: Engine Rebuild is Coming Soon

the cam bearings in the engine kit are babbit. Is there any special kind of cam bearings I should get to go with a roller cam? Type and/or brand would be appreciated.

Also what are the best main/rod bearings. The ones in the kit say tri-metal. Should I get tri-metal Cam bearings?


No racing, but I fully intend to keep my foot in it as much as I please.... I'm not light footed till money's tight.
78 Chevyrado is offline   Reply With Quote
Old 05-10-2010, 05:50 PM   #3
Jonboy
Slots go on anything!
 
Join Date: May 2003
Location: Richardson, TX
Posts: 5,957
Re: Engine Rebuild is Coming Soon

I think the cam bearings are the same, but you will need to change out the distributor drive gear to match the roller cam.
__________________
1974 Jimmy- 5.3/4L80e/NP241
Jonboy is offline   Reply With Quote
Old 05-11-2010, 09:48 AM   #4
78 Chevyrado
Account Suspended
 
Join Date: Dec 2007
Location: Unnapreciative, Trollville
Posts: 2,079
Re: Engine Rebuild is Coming Soon

Quote:
Originally Posted by Jonboy View Post
I think the cam bearings are the same, but you will need to change out the distributor drive gear to match the roller cam.
Thanks! So whats everybody's opinions on dist. gears. Everybody uses bronze, but I notice new composite gears that they say are supposed to last a lot longer than bronze gears. Has anybody had any problems with the composite gears?
78 Chevyrado is offline   Reply With Quote
Old 05-13-2010, 03:19 PM   #5
78 Chevyrado
Account Suspended
 
Join Date: Dec 2007
Location: Unnapreciative, Trollville
Posts: 2,079
Re: Engine Rebuild is Coming Soon

I think I may go with these heads

RHS Cast Iron Vortec The summit ad says they have ductile valve guides, but RHS's site says they're bronze.
http://www.summitracing.com/parts/RHS-12410-01/

It will get an edelbrock 2716 EPS vortec intake.

Still sticking with the XR264HR Roller Cam

I want my comp ration between 9:1 - 9.5:1 somewhere in there is fine.

The truck will have headers and 2.5 dual exhaust, and h or x pipe. cherry bomb vortex mufflers.

Anybody have any bad things to say about the RHS heads? I don't hear of them a lot, but I've only come across good things.

Anybody ever heard this cam? Comp XR264HR Roller.
78 Chevyrado is offline   Reply With Quote
Old 05-14-2010, 12:33 PM   #6
78 Chevyrado
Account Suspended
 
Join Date: Dec 2007
Location: Unnapreciative, Trollville
Posts: 2,079
Re: Engine Rebuild is Coming Soon

First baby step today, I ordered a new distributor. I'm on the way!
78 Chevyrado is offline   Reply With Quote
Old 05-19-2010, 12:21 PM   #7
78 Chevyrado
Account Suspended
 
Join Date: Dec 2007
Location: Unnapreciative, Trollville
Posts: 2,079
Re: Engine Rebuild is Coming Soon

Distributor got here yeasterday. It looks great! high quality stuff.

i been figuring up machine shop costs, and upgrading my crank and or rods a little, and for about the same price, I can get this shortblock, all assembled ready to go. also it should give me a 9.1:1 comp ratio, so basically its everything I wanted for my shortblock. What do you guys think of this one? anybody have any problems out of them? anything to watch out for?

its GM 12556121 short block
http://paceperformance.com/index.asp...&ProdID=184534

Last edited by 78 Chevyrado; 05-19-2010 at 01:25 PM.
78 Chevyrado is offline   Reply With Quote
Old 05-19-2010, 02:52 PM   #8
Bubba's79
Registered User
 
Bubba's79's Avatar
 
Join Date: Sep 2009
Location: Central point, or
Posts: 100
Re: Engine Rebuild is Coming Soon

That is a (r) motor you would have to run an electric fuel pump good short block though i have one but mine is a 383 and can run a standard pump because it is the performance block and is designed for it. i have the 12499106 gmpp that is in that web site
__________________
1979 C10 SWB 390CI/350 3.73GEARS
Horsepower sells motors Torque wins races!
http://67-72chevytrucks.com/vboard/s...d.php?t=397626

Last edited by Bubba's79; 05-19-2010 at 03:03 PM.
Bubba's79 is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 12:19 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com