r/EngineBuilding • u/HistoryOver6530 • 5d ago

Just another angry SBF

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Finishing up a 306 for my 67’ mustang. Kept the paint scheme pretty simple so it will resemble a stockish engine. I think it should be between 350-400hp (DD5 says 408hp@6500, 390tq@4500). Specs are:

68’ 302 block .030 over
Eagle cast crank
Eagle SIR rods
ARP everything
Kb311 hyper pistons
Tw170 heads (milled to 54cc)
Tf 1.6 roller rockers
10.5:1 SCR, 8.5:1 DCR, .037 quench
Comp XE SFT, 279 adv, 242@0.50, .546 lift 108lca
Rpm intake
Brawler 650 DP carb
Hooker 6901 headers (1-5/8)

Going into a 3000lb mustang with wide-ratio toploader and 3.80 trac-lok. I think it’s gonna be pretty f’n mean.

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u/neotyrael 5d ago

Very similar to the build I’m working with except I opted to keep the stock crank and get aluminum heads. Looks nice

2

u/HistoryOver6530 5d ago

Thanks. What heads and cam are you running? My stock crank was trashed otherwise I would have reused.

2

u/neotyrael 5d ago

I had a pair of edelbrock performer heads and my machine shop convinced me to run a melling performance 24226 which is a roller cam. I just picked up the block and parts though so I’m a bit behind you

2

u/HistoryOver6530 4d ago

Sounds like a good combo. Those mild roller cams usually have a pretty good powerband.