1970 Boss Mustang vs 1969 Firebird 400

302 4speed vs 400 4speed

Round 2

Category:

Autos & Vehicles

Tags:

• pure
• stock
• drag
• race
• factory
• PSMCDR
• 2007

[mercmarc]

@joejunior93 Pontiac didnt have a small block or big block. All the blocks from 326-455 were the same size externally.

[MidnightinSavannah]

I love when people call a Pontiac motor a big block. Pontiac have a small journal and a big journal crank. A 400 is small journal. Let's compare the Firebird and the Boss 302. The firebird has a small hyd 407 lift cam vs the 302 solid lift cam, a cast iron and qradrajet for the firebird and an alum with a holley for the 302. The firebird probably outweighs the Mustang by 600 lbs being a convertible. Boss 302's were good running cars but it was built as a racing engine but wasn't street freindly.

[reefblue331]

98 more cubic inches and wins by .10 seconds. Not to shabby.

[1962Galaxie514ciMPFI]

@Hawk6DM that boss302 held up well but if that was a boss429 it would have really gotten wasted, boss429s were slow as hell in street cars. now a 351C or a 429 would have been very different

[mercmarc]

@Hawk6DM Not necessarily some of the Ram Air 400s were running in the 12s

[Hawk6DM]

@mercmarc I think he was making the arguement that 400 CID against 302 CID is not really a fair matchup. The 302 did hold it's own pretty well though. If it had been a 351 Cleveland or a 429, it would have been all over for the Pontiac.

[goodinsrt8]

@joejunior93 no sir

[joejunior93]

Big block vs small block.???

[deannaber]

Boss that !!!!!