rat rod rebuild hemi start up

hemi starts up for first time open headders with the zoomies capped off

Category:

Autos & Vehicles

Tags:

• rat
• rod
• hemi

[JohanCash]

is that a 426cui?

[rlmiller21]

no it is a 330 desoto hemi

[shelly18509]

sounds like shit



[krpelkey]

hey a rat rod is 1940 and before org paint and rust this is not a rat rod just a turd

[Boredout454]

He also said that the cam profiles were very mild and they had not even begun to tune the engine or work on any port matching.

[Boredout454]

Haha yea I saw that exact video. And it was supposed to be a completely unmoddified engine challenge. I'm not so sure about even my most favorite or favorite engine making that much stock.

[jaratt85]

@Boredout454 so a multiple cam hemi made the same amount of power as a mild street hemi... that sucks.. there was a dyno challenge vid of classic big blocks on here and I cant find it anymore that a mild cam 426H with edelbrock carbs (ugh) and intake and like 10.5:1 made 820HP... well above anything else including a 427FE, 454, 427chev, 409, 389or 421SD and 455. I think the closest one was the ford @670ish cant remember tho

[Boredout454]

@jaratt85 Yea and Mopar at the same time started developing the DOHC426 Hemi. Although several were built none officially ran under there own power. However I talked with a man in Detroit who has about 15 or so blocks and heads and he's piecing them together (have to make a lot of the parts from scratch as a lot is missing). He said he got them from a friend who was an engineer on the project and that one did run and made 750-850hp unofficially but it was after the project was canceled.

[jaratt85]

@Boredout454 semi hemi being boss 429? issue with that was that on the street just like the boss 302 it had no bottom end torque it was up at 4800ish and at the same time that it and the SOHC427 were being design Nascar outlawed them and 358s with restrictor plates came in, they never had a chance.. one of the coolest rod engines to do as a ford is to take a 390 put a forged 428 crank and heads in it making 410 cubes and the 390 3xx2 intake and get about 500-575HP and around 550 tq. FEs suck tho

[Boredout454]

@jaratt85 Hahaha yea. Ford has never really focused on power with its engines or cars from the ground up like Mopar did. There engines either started off as a truck engine or heavy haul. Except for the 427 and 429 semi hemi all the other engines were modified to make power. And the cars were never built for performance they just took there normal cars and tried to make them into performance cars. Even the Semi Hemi didnt work out well for Ford. Was a big let down when it was released.

[jaratt85]

@Boredout454 yeah the 409 and 348 having the combustion chamber as part of the bore, plus the extra tapered area for installing the piston rings, really limited the compression ratio. theres also an old saying thats something about any monkey can make horsepower with a mopar, any educated man can make power with a chevy but it takes a genius to really make a ford fly. fords just have alot of idiosecrecies (however you spell it) that keep the power down, once you know what you are doing look out

[Boredout454]

@jaratt85 Oh of course, one of my favorites is the light weight 413 Max Wedge aluminum nosed cars. The 413 and 426 Max Wedges however were mainly used in regular cars or the future funny cars (another Mopar invention). The 409 was a good engine however it just couldnt compete against the 413-426 Max Wedges and by the time they figured out how to maximize performance in the 409 GM left racing all together in1964. Leaving Mopar with only one major competitor in Drag Racing - Ford - who lost too.