[forestg]

I have a 521 in my Pantera and am considering converting it to a boss. In addition to the heads, rocker assemblies, pushrods, valve covers and maybe pistons is there anything else I would need? Will my existing headers, distributor and intake work or would they also need to be changed?
Thank you,
Forest

 

[ArnoldRC]

New intake, and headers. Distributor will depend on what you currently have and which boss intake you choose. Pistons aren't a maybe, they're also required. No other 385 head has similar valvetrain geometry. How much room do you currently have around your heads? Boss heads are enormous, but I hope this project comes together!

 

[wickettoby1]

Headers will not work, intake will not work, distributor should work. Someone beat me again 😂

 

[ArnoldRC]

Do you have any pictures of the big block in that Pantera? It's gotta be 10lbs in 5lb bucket

 

[Werecow]

Ooooh yes!! Pics please!!! This should be an interesting project to follow!!! 🤘😁

 

[hbboss1]

what heads do you have on it now?it would cost you $12,000 to convert it to boss heads!with custom headers.

 

[bob460]

Oooooffff!!............that's going to be a tight fit.....good luck.

This is just a 351ci......but they are WAY COOL!

In Sydney today to fire this beast up. Carey McMahons Detomaso Pantera. This Synergy powerered 351 Clevo has made big power and we are looking forward... | By Synergy Race Engines | Facebook

27K views, 200 likes, 19 loves, 79 comments, 357 shares, Facebook Watch Videos from Synergy Race Engines: In Sydney today to fire this beast up. Carey McMahons Detomaso Pantera. This Synergy...

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Cheers, Bob

 

[boss 9 howard]

Oooooffff!!............that's going to be a tight fit.....good luck.

This is just a 351ci......but they are WAY COOL!

In Sydney today to fire this beast up. Carey McMahons Detomaso Pantera. This Synergy powerered 351 Clevo has made big power and we are looking forward... | By Synergy Race Engines | Facebook

27K views, 200 likes, 19 loves, 79 comments, 357 shares, Facebook Watch Videos from Synergy Race Engines: In Sydney today to fire this beast up. Carey McMahons Detomaso Pantera. This Synergy...

www.facebook.com

Cheers, Bob

howdy:you will not be the first to do this.coyote motor is bigger.Need to call T&D for rockers that last a long time. bout 2,600$ last time I called.What are you doing for a bell???

 

[forestg]

I will try to add photos. Never done this before. The existing heads are edelbrock 75cc chambers.

This is the area I have concerns about clearance.

 

[wickettoby1]

If a Boss 9 fits its not gonna do so willingly, you’re gonna have to get creative 😂

 

[Werecow]

Yeaahhhh, that's gnna need a BFH and a hot wrench to make those big heads and headers fit for sure... If you can make it fit it's gnna look totally cool tho!!! Also question... Is the conversion for power increase or visual and uniqueness of the car?

 

[boss 9 howard]

Seen it done.Remote water pump,and moved the motor a little further foward with a second spacer plate behind the motor.He welded the spacers to the bell,longer fly wheel spacer,and it still a little well trimming,front and back radiators.

 

[Werecow]

Sounds like that took a lotta cypherin an a slide rule!!!

 

[forestg]

Yeaahhhh, that's gnna need a BFH and a hot wrench to make those big heads and headers fit for sure... If you can make it fit it's gnna look totally cool tho!!! Also question... Is the conversion for power increase or visual and uniqueness of the car?

More for uniqueness than power.

 

[Werecow]

I was gnna say, if it's for power a set of Kaase heads will get you more than adequate power. But I understand the visual impact of a huge set of Boss 29 valve covers. If you have the want to, the time, the ability, and the $$$, anything is possible tho! @boss 9 howard had some good suggestions to make it happen!! Either way you go that's a really awesome install as is. More pics would be really cool, and if you want start up a build thread that would be great as well!!

 

[BBF521]

I will try to add photos. Never done this before. The existing heads are edelbrock 75cc chambers.

View attachment 94611 View attachment 94612




View attachment 94615

This is the area I have concerns about clearance.

Is that a mid plate or some kind or adapter plate between the block and bell housing?If either can you tell us a little bit about it .
You probably have slept since you bought/made it ,but any details about it would be cool.

 

[forestg]

Is that a mid plate or some kind or adapter plate between the block and bell housing?If either can you tell us a little bit about it .
You probably have slept since you bought/made it ,but any details about it would be cool.

It is an adapter plate to mate the clevland bell to the 429 block. It is 1/2" thick and puts the face of the flywheel the same distance into the bell as the clevland was so clutch fitup works.