On the weekend I blew up my motor. Threw a rod. I am looking at putting in a long block either a 383 or ZZ4. Other than using my water pump are there any other issues I am going to run into? Will the oil pan that comes on the new motor fit in my Standard frame or will I need to order a new one ( mine has many dents and 3 holes right now) Thanks for the help

 

If it helps any I just put a turn key ZZ4 in my 82. Had to change the water pump to a short one from Edelbrock but did not have any real issues with the engine. The oil pan that came on the ZZ4 fit right in.

Andy

 

Thanks for the reply I checked with GM and they have said the same.

 

The ZZ4 comes with an electronic tach connection, my 70 had mechanical one. Summit would not exchange.
Also, with a Holley on the ZZ4 manifold, would not clear the hood and had to put on an L88 scoop.
Exhaust manifold has D shaped ports that do not match the stock. I bought Hedman Headers made for the ZZ4.
Otherwise have been very happy with the ZZ4. It Aotocrosses very good.
If you have a manual tranny be sure to take the flex plate off!

 

Just finished on the weekend switching the engine to a ZZ383. Problems I encountered.
New flywheel as old would not match
New intake (Edelbrock)) as my old would bolt up but not seal as the ports on the new heads are huge. Needed to modify the throttle linkage as it was way off.
Once installed headers could not use factory mounting holes for wire looms so needed to custom(New covers are center bold so used old looms and bent and actually looks good)
Water pump interference. Ground down one bolt on engine timing cover 85%. can still remove but not much shoulder on bolt. Also ground down all bolts on back of water pump (removed raised lip and numbers)
Am in the process of setting up carb, timing and stopping exhaust leaks.
Will update once complete.

 

Still strugling with the exhaust leaks. Have changed the exhaust gasket twice. Have tried to put high temp silicone on both sides of a new gasket and quiet until I step on it and it blows out the gasket. Will continue to try. Not sure also looking into getting another set of headers to fit a 76 standard with a flange to fit the fast burn aluminum heads with D ports.

 

I emailed Headman, Hooker and Summit and received as of today have only heard from Headman who gave me the information I was afraid of. I need to buy a new set of headers. They gave me part numbers. I needed to look around to find someone with a set in stock. I was being quoted 6 weeks. Found a set and they should be in Tomorrow. Will update once I have them installed and their are no exhaust leaks. Here is the response i received:

Hello there, Jon
Thank you, for your interest in our Hedman Street series hedders for your custom small-block Chevy ZZ383 crate engine with D-shaped ports.
According to our current catalog listings you must use this full length long tube hedder part# 68309 with the matching D-shaped ports to match your ZZ383.
YOU MUST USE A MATCHING D-SHAPED port hedder.
This same D-port hedder is also available with our optional HTC polished ceramic coating under part# 66309.
Both of these Corvette D-shaped hedders part# 68309/66309 are built with the 1-5/8" diameter primary tubes with D-shaped ports and 3" size collectors.
The materials used to build this hedder are 18-gauge mild steel with 1/4" thick flanges.
Please note, your available hedder clearance and spark plug clearance will vary.
Please contact your local dealer or distributor for the best pricing and availability in your area.
Let us know if you have any further questions or concerns.
Good Luck,
Hedman Performance Group
Customer Service Dept.

 

Installed the new headers last night. Needed to cut exhaust as new headers use ball and socket collector. Still fighting exhaust leak on connection to origional exhaust. Will look into getting Mig'd

 

Had exhaust mig'd and all is quiet now. Have gone through a couple of heat cycles and have re tightened the header bolts into the head. Will wire them when i get some time so they do not loosen.

 

Additional parts for switch

fly wheel
headers
temp sensor
intake
clutch
High torque starter

 

what carb are You using ?

 

Holly 750 with vacumn secondaries.