{"id":1324,"date":"2018-06-29T23:13:47","date_gmt":"2018-06-30T05:13:47","guid":{"rendered":"http:\/\/www.apatco.com\/corvette\/?p=1324"},"modified":"2020-06-09T14:51:21","modified_gmt":"2020-06-09T20:51:21","slug":"new-engine-for-the-78","status":"publish","type":"post","link":"https:\/\/www.apatco.com\/corvette\/?p=1324","title":{"rendered":"New Engine for the ’78"},"content":{"rendered":"

So, I decided to build a new engine for the ’78. I wanted a little bit more HP then the stock L82 was providing. I also felt that the heads in the stock engine were wore out.<\/p>\n

$\"20180606_170820\"$ <\/p>\n

Here are the specifications:<\/strong><\/p>\n

Block:\u00a0<\/strong> \u00a0GM Casting 3956618\u00a0 (From 1969 C10-35)
\nBored 4.030 Align Honed, Decked, Pressure Tested
\nCrank:\u00a0<\/strong> Scat Cast Steel\u00a0 \u00a0Part# 9-10442
\nPistons:<\/strong> Claimer Hyper-eutectic Flat Top
\nCam:\u00a0<\/strong> CompCam XE268H-10
\nHeads:<\/strong> Dart Iron Eagle 180 64cc
\nRockers:<\/strong> CompCams Magnum Steel Roller Rockers 1.52
\nIntake:<\/strong> Edelbrock Performer EPS Intake (2701)
\nExhaust:<\/strong> Patriot Headers (PTE H8025-1)<\/p>\n

Compression ratio:<\/strong> 10.45:1
\nDynamic Compression:<\/strong> 8.7:1
\nCranking Pressure:<\/strong> 194.98psi
\nGuage Pressure:<\/strong> 180.44
\nDynamic<\/strong> Cranking Pressure:<\/strong> 176.46psi
\nHP:<\/strong> Estimated 401 @ 5500
\nTorque:<\/strong> Estimated 442 @ 3800<\/p>\n

$\"20180409_120509\"$ <\/p>\n

The block was bored and machined at Brazier Race and Machine<\/a> in Winnipeg, Manitoba. They were very good, and did a great job on my block. They talked me into getting them to install the crank, cam, and pistons which was probably a good idea.<\/p>\n

$\"20180409_200324\"$ <\/p>\n

I painted it right away.<\/p>\n

$\"20180419_133102\"$ <\/p>\n

Then installed the Oil pump, heads, rockers, intake & water pump.<\/p>\n","protected":false},"excerpt":{"rendered":"