slant 6 to big block

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Moparornocar87

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Hey everybody, just got a 68 dart 270 slant six for a good price because I want to make my own street beast. I want to make great power on pump gas (92) octane, and I would like to do a big block. Anybody out there got any suggestions for what I could do to this car? (Kinda wanted to do a 440) As far as which big block would be good for fitting and stuff? Any info would be very much appreciated. Thank you
 
Moparornocar87 said:
Hey everybody, just got a 68 dart 270 slant six for a good price because I want to make my own street beast. I want to make great power on pump gas (92) octane, and I would like to do a big block. Anybody out there got any suggestions for what I could do to this car? (Kinda wanted to do a 440) As far as which big block would be good for fitting and stuff? Any info would be very much appreciated. Thank you
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Your question is really not about our opinions, but about what YOU want to do. If you want to go with a 440, then start searching the forum posts about that swap and start learning.
 
Not sure if you know this but a 383 and 440 are the both going to go into your car the same way. The search function is also very helpful for questions like this as it is a fairly common swap.
 
Suggest a b block, the clearances especially header is damn tight with an RB If Schumacher still makes the their header fit well but leave power on the table if you have a high hp setup. May have kframe clearance issues with oil pump.
 
Lots of info out there. We have done B and RB swaps. RB is very TIGHT in many places, BUT my latest build is a 440 because it was FREE. Yes, I could have traded for a 383, but I didn't want to. All of our builds have used B-body HP manifolds which are especially tight with an RB, but worth it...
 
Brooks James said:
Suggest a b block, the clearances especially header is damn tight with an RB If Schumacher still makes the their header fit well but leave power on the table if you have a high hp setup. May have kframe clearance issues with oil pump.
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how about a 383 to 496 stroker??
 
Lots of tight spaces. I run a 440 in my 67 notch. Used AndyF’s motor plate and tti headers. Still had to beat on the tubes by the steering column. The passenger side is maybe 3/8” away from inner fender. Gotta use a mini starter with headers.
 
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