Hey all

J

Jsup

Member
Some of you already know me and are happy to see me, then there's the others! :lol: My Vette is a 1990 with 34,000. Still smells new on the inside. Always kept in a garage.

About 1.5 years ago I decided I needed more power and built the motor from the anemic 250HP stock to a standard combo of cam, intake, heads, long tube headers to about 400HP or so.

Well, I needed to change the injectors so when I did I dropped the distributor screw down the hole and it got caught up on a piston. As a result I had to rebuild the new motor. So as I weighed what do to, I decided to go with a 400 block and stroke it to 427. Why 427 you ask, well, it's just a really cool number is all. It has its place in Corvette history, and today with the Z06.

I decided on letting Pat Musi build the motor this time. He's well known and his motors hold some pretty stout world records. I have no idea what power it's putting down, but on paper we figure about 550-575HP. It's fun to drive except for the face that the tires will break loose at almost any speed, including 70MPH.

I plan a rear end upgrade this spring, and bigger brakes by next fall. Then I'm done except for cosmetics, which will be a multi year project.
 
welcome aboard,
please post details, detailed parts lists,
and pictures if you can.
a few brief impressions of driving the car and dyno info or time slips if youve got them, AND we just KNOW youve got them after spending the effort on the cars upgraded components
 
grumpyvette said:
welcome aboard,
please post details, detailed parts lists,
and pictures if you can.
a few brief impressions of driving the car and dyno info or time slips if youve got them, AND we just KNOW youve got them after spending the effort on the cars upgraded components
Click to expand...

Parts list. Dam I must be getting old, I'm starting to forget.

Ok, I'll give it a shot:

Built by Pat Musi http://www.patmusiperformance.com/index ... 2_start=10 It's on the bottom of the page.

427 built on a Dart SHP 400 block Every nut and bolt is ARP.

All Forged internals including:
Scat crank
Mahle Pistons
Scat connecting rods

Valve Train:
Cam is a Bullet Cams roller custom grind 240/246 with an LSA of 112*, centerline 108*, total lift of .605 with the rockers with 66* overlap
Comp 5/16 chrome molly push rods
Comp Pro Mag, 7/16 stud mount Roller Rockers 1.6
LS7 Lifters

Intake:
Miniram intake, gasket matched and ported to 1206 gaskets
42# Bosch Injectors
Walbro high volume fuel pump
Dart Pro 1 215 CC heads, cleaned up at the factory

Misc:
Some cool Pat Musi One of a kind engraved valve covers
Stock ECU Tune by Greg Carroll, still working on it.
Kevko oil pan with Melling 10% over "high volume" pump.

Driveline:
Transmission is 700R4 Built by Performabuilt. The highest rated trans they make, all the best internals according to what people have told me. 3000 Stall converter. Upgrading to a 3.54 D44 rear and doing a 10 link suspension kit from Blower Works, Carroll Supercharging.

I'm not done with the tune or the rear so I don't have a dyno sheet. The motor is still new, no track time yet. TBD in the spring.

Here's a video.
http://www.youtube.com/watch?v=Gw-PnNu7 ... annel_page


Pictures later.
 
lets hope so! just because your on one forum dosen,t mean you can,t go to others,
I participate on about 9 forums and I got tired of the B.S. and politics on some, the clicks the , restrictions and the guys that try to down the newbies, so after a couple dozen guys suggested I start my own forum and two forums changed there formats and lost HUNDEREDs if not thousands of bits of posted info I decided they were correct...
the more guys here the more valid info, and the less B.S.
 
hear hear

You forgot about the mods on some forums playing god.

BTW I will have a nice update coming soon. I am turning my car into a more comfortable and cleaner driver. I will post some details and pics for your BBC swap thread when complete


Bill
 
Hey Jsup! Your name looks familiar.

I hate Edelbrock, but that 555 they're offering looks pretty awesome.
I just checked out the PMP page, is that 427 #1 Prototype YOUR 427? It says it was just installed in a '90 Vette.
 
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