Pontiac Xram SCCA engine

[tjs44]

Not a Chevy but thought members would be interested that Pontiac had a Xram short deck engine for the 69 season.Tom

[tjs44]

Pic

[Tracker1]

Beautiful piece!!! Would have been a street piece if the SCCA hadn't stiffed Pontiac on the production figures at the last minute.

Just a note, your sticker should say Traco, not Tarco

[tjs44]

LOL!Never noticed that.Will have to give the guy hell I got them from!Tom

[1crossram]

Are those carbs the 4295's that were also used on the GM crossram?
No choke plates and dual accelerator pumps.

[Lee Stewart]

Pontiac’s Ram Air V Trans Am that never was

https://www.hagerty.com/media/buying-and-selling/pontiac-ram-air-v-that-never-was/

[Rfish]

Nice piece!! That would look nice sitting in my ‘69 T/A :)

[Xplantdad]

Pontiac’s Ram Air V Trans Am that never was

https://www.hagerty.com/media/buying-and-selling/pontiac-ram-air-v-that-never-was/


The engine in the car linked above was built by Tom (TJS44) :)

[1967Z28]

Neither Tarco or Traco. It was Al Bartz that built the Firebird engines for SCCA Trans-Am in '69.

[tjs44]

Actually the factory engineering built 25 303 SCCA engines complete with exhaust manifolds and smog pumps carb to pan.They were not allowed to compete with them in the short deck version as they needed 100 to be allowed.
The carbs are the same as the Chevy 302s.If you look at the intake from the top you can see how the carbs nest together.Tom

[NorCam]

That's pretty cool Tom. Now the million dollar question...

What car is it going to go into? :biggthumpup:

[tjs44]

Pic.This car has a 428 RA V in it now

[tjs44]

Try this again!

[iluv69s]

cool motor !! What's it going on?

I had an NOS RA IV x-ram intake years ago. Ended up in a RA IV Judge if I recall.

But, Seems like the distributor is rarer than the intake !!

[NorCam]

Very nice. That's gonna be wicked. :naughty:

[tjs44]

I have both the RAIV and RAV Xram dizzys.Owed a IV X ram but did not have the dizzy at the time and sold it.Those intakes are pretty much not usable without the dizzys.Tom

[Tracker1]

I have both the RAIV and RAV Xram dizzys.Owed a IV X ram but did not have the dizzy at the time and sold it.Those intakes are pretty much not usable without the dizzys.Tom

You have some of the coolest Pontiac stuff Tom!

[Xplantdad]

You have some of the coolest Pontiac stuff Tom!



Agreed Des!:headbang:

[tjs44]

For the grace of God I ended up a Pontiac nut,if a Chevy I would probably be trying build Z11 stuff!Tom

[JoeC]

another article

https://www.motortrend.com/news/hppp-1209-pioneers-of-the-pontiac-v8/

[Charley Lillard]

That is really fricken cool. And I love the "Tarco" screwup. "Missed it by that much"

[chevelleheart]

Really Kool stuff

[tjs44]

I have read much of what is in the article and have read about the 366 short deck engine but have never ran into any of those parts over the years.The short deck block used 2.5 mains against all the others being 3 or 3.25 mains.I have owned and run into many 366 std deck parts and engine.Never talked to anyone that had there hands on the short deck 366.I actually built one with a 303 short deck block,a 57-58 forged crank and custom internals.Tom

[1967Z28]

Motor Trend article from 1969 on the Firebird and the 303. Also a couple of low resolution pics from the same era.

[Lee Stewart]

Tunnel Port engines all suffer the same malise: The bottom end can't withstand the super high revs (9000) the engines are capable of. Ford had their 302 TP engine in 1968. ALL of them blew up on the race track.

[tjs44]

Lee,I learned how to setup the Xram carb linkage from that picture.Tom

[tjs44]

This little engine at 9.5 CR and small street cam made 435HP,Steve at Westech figure 440,I figured 425 so both were close.Not bad for a block that was designed for 185 HP turbo charged.Tom